gitlabFork/ISPConfig3.git - Solinfo Gitblit

- don't set password via remoting if field is empty

Marius Cramer

2015-08-06 37b29231e47a0c4458dc1c15d98588f16f07e1e2

commit \| author \| age
fdb514	1	## Dovecot configuration file
T	2
	3	# If you're in a hurry, see http://wiki.dovecot.org/QuickConfiguration
	4
	5	# "dovecot -n" command gives a clean output of the changed settings. Use it
	6	# instead of copy&pasting this file when posting to the Dovecot mailing list.
	7
	8	# '#' character and everything after it is treated as comments. Extra spaces
	9	# and tabs are ignored. If you want to use either of these explicitly, put the
	10	# value inside quotes, eg.: key = "# char and trailing whitespace "
	11
	12	# Default values are shown for each setting, it's not required to uncomment
	13	# those. These are exceptions to this though: No sections (e.g. namespace {})
	14	# or plugin settings are added by default, they're listed only as examples.
	15	# Paths are also just examples with the real defaults being based on configure
	16	# options. The paths listed here are for configure --prefix=/usr
	17	# --sysconfdir=/etc --localstatedir=/var --with-ssldir=/etc/ssl
	18
	19	# Base directory where to store runtime data.
	20	#base_dir = /var/run/dovecot/
	21
	22	# Protocols we want to be serving: imap imaps pop3 pop3s managesieve
	23	# If you only want to use dovecot-auth, you can set this to "none".
	24	#protocols = imap imaps
	25	protocols = imap imaps pop3 pop3s
	26
	27	# A space separated list of IP or host addresses where to listen in for
	28	# connections. "*" listens in all IPv4 interfaces. "[::]" listens in all IPv6
	29	# interfaces. Use "*, [::]" for listening both IPv4 and IPv6.
	30	#
	31	# If you want to specify ports for each service, you will need to configure
	32	# these settings inside the protocol imap/pop3/managesieve { ... } section,
	33	# so you can specify different ports for IMAP/POP3/MANAGESIEVE. For example:
	34	# protocol imap {
	35	# listen = *:10143
	36	# ssl_listen = *:10943
	37	# ..
	38	# }
	39	# protocol pop3 {
	40	# listen = *:10100
	41	# ..
	42	# }
	43	# protocol managesieve {
	44	# listen = *:12000
	45	# ..
	46	# }
	47	#listen = *
c2568b	48	listen = *,[::]
fdb514	49
T	50	# Disable LOGIN command and all other plaintext authentications unless
	51	# SSL/TLS is used (LOGINDISABLED capability). Note that if the remote IP
	52	# matches the local IP (ie. you're connecting from the same computer), the
	53	# connection is considered secure and plaintext authentication is allowed.
	54	#disable_plaintext_auth = yes
	55	disable_plaintext_auth = no
	56
	57	# Should all IMAP and POP3 processes be killed when Dovecot master process
	58	# shuts down. Setting this to "no" means that Dovecot can be upgraded without
	59	# forcing existing client connections to close (although that could also be
	60	# a problem if the upgrade is eg. because of a security fix). This however
	61	# means that after master process has died, the client processes can't write
	62	# to log files anymore.
	63	#shutdown_clients = yes
	64	shutdown_clients = yes
	65
	66	##
	67	## Logging
	68	##
	69
	70	# Log file to use for error messages, instead of sending them to syslog.
	71	# /dev/stderr can be used to log into stderr.
	72	#log_path =
	73
	74	# Log file to use for informational and debug messages.
	75	# Default is the same as log_path.
	76	#info_log_path =
	77
	78	# Prefix for each line written to log file. % codes are in strftime(3)
	79	# format.
	80	#log_timestamp = "%b %d %H:%M:%S "
	81	log_timestamp = "%Y-%m-%d %H:%M:%S "
	82
	83	# Syslog facility to use if you're logging to syslog. Usually if you don't
	84	# want to use "mail", you'll use local0..local7. Also other standard
	85	# facilities are supported.
	86	#syslog_facility = mail
	87
	88	##
	89	## SSL settings
	90	##
	91
	92	# IP or host address where to listen in for SSL connections. Remember to also
	93	# add imaps and/or pop3s to protocols setting. Defaults to same as "listen"
	94	# setting if not specified.
	95	#ssl_listen =
	96
	97	# SSL/TLS support: yes, no, required. <doc/wiki/SSL.txt>
6ed098	98	ssl = yes
fdb514	99
T	100	# PEM encoded X.509 SSL/TLS certificate and private key. They're opened before
	101	# dropping root privileges, so keep the key file unreadable by anyone but
	102	# root. Included doc/mkcert.sh can be used to easily generate self-signed
	103	# certificate, just make sure to update the domains in dovecot-openssl.cnf
	104	#ssl_cert_file = /etc/ssl/certs/dovecot.pem
	105	#ssl_key_file = /etc/ssl/private/dovecot.pem
	106
8cf78b	107	ssl_cert_file = /etc/postfix/smtpd.cert
T	108	ssl_key_file = /etc/postfix/smtpd.key
	109
fdb514	110	# If key file is password protected, give the password here. Alternatively
T	111	# give it when starting dovecot with -p parameter. Since this file is often
	112	# world-readable, you may want to place this setting instead to a different
	113	# root owned 0600 file by using !include_try <path>.
	114	#ssl_key_password =
	115
	116	# File containing trusted SSL certificate authorities. Set this only if you
	117	# intend to use ssl_verify_client_cert=yes. The CAfile should contain the
	118	# CA-certificate(s) followed by the matching CRL(s).
	119	#ssl_ca_file =
	120
	121	# Request client to send a certificate. If you also want to require it, set
	122	# ssl_require_client_cert=yes in auth section.
	123	#ssl_verify_client_cert = no
	124
	125	# Which field from certificate to use for username. commonName and
	126	# x500UniqueIdentifier are the usual choices. You'll also need to set
	127	# ssl_username_from_cert=yes.
	128	#ssl_cert_username_field = commonName
	129
	130	# How often to regenerate the SSL parameters file. Generation is quite CPU
	131	# intensive operation. The value is in hours, 0 disables regeneration
	132	# entirely.
	133	#ssl_parameters_regenerate = 168
	134
	135	# SSL ciphers to use
	136	#ssl_cipher_list = ALL:!LOW:!SSLv2
	137
	138	# Show protocol level SSL errors.
	139	#verbose_ssl = no
	140
	141	##
	142	## Login processes
	143	##
	144
	145	# <doc/wiki/LoginProcess.txt>
	146
	147	# Directory where authentication process places authentication UNIX sockets
	148	# which login needs to be able to connect to. The sockets are created when
	149	# running as root, so you don't have to worry about permissions. Note that
	150	# everything in this directory is deleted when Dovecot is started.
	151	#login_dir = /var/run/dovecot/login
	152
	153	# chroot login process to the login_dir. Only reason not to do this is if you
	154	# wish to run the whole Dovecot without roots. <doc/wiki/Rootless.txt>
	155	#login_chroot = yes
	156
	157	# User to use for the login process. Create a completely new user for this,
	158	# and don't use it anywhere else. The user must also belong to a group where
	159	# only it has access, it's used to control access for authentication process.
	160	# Note that this user is NOT used to access mails. <doc/wiki/UserIds.txt>
	161	#login_user = dovecot
	162
	163	# Set max. process size in megabytes. If you don't use
	164	# login_process_per_connection you might need to grow this.
	165	#login_process_size = 64
	166
	167	# Should each login be processed in it's own process (yes), or should one
	168	# login process be allowed to process multiple connections (no)? Yes is more
	169	# secure, espcially with SSL/TLS enabled. No is faster since there's no need
	170	# to create processes all the time.
	171	#login_process_per_connection = yes
	172
	173	# Number of login processes to keep for listening new connections.
	174	#login_processes_count = 3
	175
	176	# Maximum number of login processes to create. The listening process count
	177	# usually stays at login_processes_count, but when multiple users start logging
	178	# in at the same time more extra processes are created. To prevent fork-bombing
	179	# we check only once in a second if new processes should be created - if all
	180	# of them are used at the time, we double their amount until the limit set by
	181	# this setting is reached.
	182	#login_max_processes_count = 128
	183
	184	# Maximum number of connections allowed per each login process. This setting
	185	# is used only if login_process_per_connection=no. Once the limit is reached,
	186	# the process notifies master so that it can create a new login process.
	187	#login_max_connections = 256
	188
	189	# Greeting message for clients.
	190	#login_greeting = Dovecot ready.
	191
	192	# Space separated list of trusted network ranges. Connections from these
	193	# IPs are allowed to override their IP addresses and ports (for logging and
	194	# for authentication checks). disable_plaintext_auth is also ignored for
	195	# these networks. Typically you'd specify your IMAP proxy servers here.
	196	#login_trusted_networks =
	197
	198	# Space-separated list of elements we want to log. The elements which have
	199	# a non-empty variable value are joined together to form a comma-separated
	200	# string.
	201	#login_log_format_elements = user=<%u> method=%m rip=%r lip=%l %c
	202
	203	# Login log format. %$ contains login_log_format_elements string, %s contains
	204	# the data we want to log.
	205	#login_log_format = %$: %s
	206
	207	##
	208	## Mailbox locations and namespaces
	209	##
	210
	211	# Location for users' mailboxes. This is the same as the old default_mail_env
	212	# setting. The default is empty, which means that Dovecot tries to find the
	213	# mailboxes automatically. This won't work if the user doesn't have any mail
	214	# yet, so you should explicitly tell Dovecot the full location.
	215	#
	216	# If you're using mbox, giving a path to the INBOX file (eg. /var/mail/%u)
	217	# isn't enough. You'll also need to tell Dovecot where the other mailboxes are
	218	# kept. This is called the "root mail directory", and it must be the first
	219	# path given in the mail_location setting.
	220	#
	221	# There are a few special variables you can use, eg.:
	222	#
	223	# %u - username
	224	# %n - user part in user@domain, same as %u if there's no domain
	225	# %d - domain part in user@domain, empty if there's no domain
	226	# %h - home directory
	227	#
	228	# See <doc/wiki/Variables.txt> for full list. Some examples:
	229	#
	230	# mail_location = maildir:~/Maildir
	231	# mail_location = mbox:~/mail:INBOX=/var/mail/%u
	232	# mail_location = mbox:/var/mail/%d/%1n/%n:INDEX=/var/indexes/%d/%1n/%n
	233	#
	234	# <doc/wiki/MailLocation.txt>
	235	#
	236	#mail_location =
	237	mail_location = maildir:/var/vmail/%d/%n/Maildir
	238
	239	# If you need to set multiple mailbox locations or want to change default
	240	# namespace settings, you can do it by defining namespace sections.
	241	#
	242	# You can have private, shared and public namespaces. Private namespaces
	243	# are for user's personal mails. Shared namespaces are for accessing other
	244	# users' mailboxes that have been shared. Public namespaces are for shared
	245	# mailboxes that are managed by sysadmin. If you create any shared or public
	246	# namespaces you'll typically want to enable ACL plugin also, otherwise all
	247	# users can access all the shared mailboxes, assuming they have permissions
	248	# on filesystem level to do so.
	249	#
	250	# REMEMBER: If you add any namespaces, the default namespace must be added
	251	# explicitly, ie. mail_location does nothing unless you have a namespace
	252	# without a location setting. Default namespace is simply done by having a
	253	# namespace with empty prefix.
	254	#namespace private {
	255	# Hierarchy separator to use. You should use the same separator for all
	256	# namespaces or some clients get confused. '/' is usually a good one.
	257	# The default however depends on the underlying mail storage format.
	258	#separator =
	259
	260	# Prefix required to access this namespace. This needs to be different for
	261	# all namespaces. For example "Public/".
	262	#prefix =
	263
	264	# Physical location of the mailbox. This is in same format as
	265	# mail_location, which is also the default for it.
	266	#location =
	267
	268	# There can be only one INBOX, and this setting defines which namespace
	269	# has it.
	270	#inbox = no
	271
	272	# If namespace is hidden, it's not advertised to clients via NAMESPACE
	273	# extension. You'll most likely also want to set list=no. This is mostly
	274	# useful when converting from another server with different namespaces which
	275	# you want to deprecate but still keep working. For example you can create
	276	# hidden namespaces with prefixes "~/mail/", "~%u/mail/" and "mail/".
	277	#hidden = yes
	278
	279	# Show the mailboxes under this namespace with LIST command. This makes the
	280	# namespace visible for clients that don't support NAMESPACE extension.
	281	# "children" value lists child mailboxes, but hides the namespace prefix.
	282	#list = yes
	283
	284	# Namespace handles its own subscriptions. If set to "no", the parent
	285	# namespace handles them (empty prefix should always have this as "yes")
	286	#subscriptions = yes
	287	#}
	288
	289	# Example shared namespace configuration
	290	#namespace shared {
	291	#separator = /
	292
	293	# Mailboxes are visible under "shared/user@domain/"
	294	# %%n, %%d and %%u are expanded to the destination user.
	295	#prefix = shared/%%u/
	296
	297	# Mail location for other users' mailboxes. Note that %variables and ~/
	298	# expands to the logged in user's data. %%n, %%d, %%u and %%h expand to the
	299	# destination user's data.
	300	#location = maildir:%%h/Maildir:INDEX=~/Maildir/shared/%%u
	301
	302	# Use the default namespace for saving subscriptions.
	303	#subscriptions = no
	304
	305	# List the shared/ namespace only if there are visible shared mailboxes.
	306	#list = children
	307	#}
	308
	309	# System user and group used to access mails. If you use multiple, userdb
	310	# can override these by returning uid or gid fields. You can use either numbers
	311	# or names. <doc/wiki/UserIds.txt>
	312	#mail_uid =
	313	#mail_gid =
	314
	315	# Group to enable temporarily for privileged operations. Currently this is
	316	# used only with INBOX when either its initial creation or dotlocking fails.
	317	# Typically this is set to "mail" to give access to /var/mail.
	318	#mail_privileged_group =
	319
	320	# Grant access to these supplementary groups for mail processes. Typically
	321	# these are used to set up access to shared mailboxes. Note that it may be
	322	# dangerous to set these if users can create symlinks (e.g. if "mail" group is
	323	# set here, ln -s /var/mail ~/mail/var could allow a user to delete others'
	324	# mailboxes, or ln -s /secret/shared/box ~/mail/mybox would allow reading it).
	325	#mail_access_groups =
	326
	327	# Allow full filesystem access to clients. There's no access checks other than
	328	# what the operating system does for the active UID/GID. It works with both
	329	# maildir and mboxes, allowing you to prefix mailboxes names with eg. /path/
	330	# or ~user/.
	331	#mail_full_filesystem_access = no
	332
	333	##
	334	## Mail processes
	335	##
	336
	337	# Enable mail process debugging. This can help you figure out why Dovecot
	338	# isn't finding your mails.
	339	#mail_debug = no
	340
	341	# Log prefix for mail processes. See <doc/wiki/Variables.txt> for list of
	342	# possible variables you can use.
	343	#mail_log_prefix = "%Us(%u): "
	344
	345	# Max. number of lines a mail process is allowed to log per second before it's
	346	# throttled. 0 means unlimited. Typically there's no need to change this
	347	# unless you're using mail_log plugin, which may log a lot. This setting is
	348	# ignored while mail_debug=yes to avoid pointless throttling.
	349	#mail_log_max_lines_per_sec = 10
	350
	351	# Don't use mmap() at all. This is required if you store indexes to shared
	352	# filesystems (NFS or clustered filesystem).
	353	#mmap_disable = no
	354
	355	# Rely on O_EXCL to work when creating dotlock files. NFS supports O_EXCL
	356	# since version 3, so this should be safe to use nowadays by default.
	357	#dotlock_use_excl = yes
	358
	359	# Don't use fsync() or fdatasync() calls. This makes the performance better
	360	# at the cost of potential data loss if the server (or the file server)
	361	# goes down.
	362	#fsync_disable = no
	363
	364	# Mail storage exists in NFS. Set this to yes to make Dovecot flush NFS caches
	365	# whenever needed. If you're using only a single mail server this isn't needed.
	366	#mail_nfs_storage = no
	367	# Mail index files also exist in NFS. Setting this to yes requires
	368	# mmap_disable=yes and fsync_disable=no.
	369	#mail_nfs_index = no
	370
	371	# Locking method for index files. Alternatives are fcntl, flock and dotlock.
	372	# Dotlocking uses some tricks which may create more disk I/O than other locking
	373	# methods. NFS users: flock doesn't work, remember to change mmap_disable.
	374	#lock_method = fcntl
	375
	376	# Drop all privileges before exec()ing the mail process. This is mostly
	377	# meant for debugging, otherwise you don't get core dumps. It could be a small
	378	# security risk if you use single UID for multiple users, as the users could
	379	# ptrace() each others processes then.
	380	#mail_drop_priv_before_exec = no
	381
	382	# Show more verbose process titles (in ps). Currently shows user name and
	383	# IP address. Useful for seeing who are actually using the IMAP processes
	384	# (eg. shared mailboxes or if same uid is used for multiple accounts).
	385	#verbose_proctitle = no
	386
	387	# Valid UID range for users, defaults to 500 and above. This is mostly
	388	# to make sure that users can't log in as daemons or other system users.
	389	# Note that denying root logins is hardcoded to dovecot binary and can't
	390	# be done even if first_valid_uid is set to 0.
	391	first_valid_uid = 5000
	392	last_valid_uid = 5000
	393
	394	# Valid GID range for users, defaults to non-root/wheel. Users having
	395	# non-valid GID as primary group ID aren't allowed to log in. If user
	396	# belongs to supplementary groups with non-valid GIDs, those groups are
	397	# not set.
	398	first_valid_gid = 5000
	399	last_valid_gid = 5000
	400
	401	# Maximum number of running mail processes. When this limit is reached,
	402	# new users aren't allowed to log in.
	403	#max_mail_processes = 512
	404
	405	# Set max. process size in megabytes. Most of the memory goes to mmap()ing
	406	# files, so it shouldn't harm much even if this limit is set pretty high.
	407	#mail_process_size = 256
	408
	409	# Maximum allowed length for mail keyword name. It's only forced when trying
	410	# to create new keywords.
	411	#mail_max_keyword_length = 50
	412
	413	# ':' separated list of directories under which chrooting is allowed for mail
	414	# processes (ie. /var/mail will allow chrooting to /var/mail/foo/bar too).
	415	# This setting doesn't affect login_chroot, mail_chroot or auth chroot
	416	# settings. If this setting is empty, "/./" in home dirs are ignored.
	417	# WARNING: Never add directories here which local users can modify, that
	418	# may lead to root exploit. Usually this should be done only if you don't
	419	# allow shell access for users. <doc/wiki/Chrooting.txt>
	420	#valid_chroot_dirs =
	421
	422	# Default chroot directory for mail processes. This can be overridden for
	423	# specific users in user database by giving /./ in user's home directory
	424	# (eg. /home/./user chroots into /home). Note that usually there is no real
	425	# need to do chrooting, Dovecot doesn't allow users to access files outside
	426	# their mail directory anyway. If your home directories are prefixed with
	427	# the chroot directory, append "/." to mail_chroot. <doc/wiki/Chrooting.txt>
	428	#mail_chroot =
	429
	430	##
	431	## Mailbox handling optimizations
	432	##
	433
	434	# The minimum number of mails in a mailbox before updates are done to cache
	435	# file. This allows optimizing Dovecot's behavior to do less disk writes at
	436	# the cost of more disk reads.
	437	#mail_cache_min_mail_count = 0
	438
	439	# When IDLE command is running, mailbox is checked once in a while to see if
	440	# there are any new mails or other changes. This setting defines the minimum
	441	# time in seconds to wait between those checks. Dovecot can also use dnotify,
	442	# inotify and kqueue to find out immediately when changes occur.
	443	#mailbox_idle_check_interval = 30
	444
	445	# Save mails with CR+LF instead of plain LF. This makes sending those mails
	446	# take less CPU, especially with sendfile() syscall with Linux and FreeBSD.
	447	# But it also creates a bit more disk I/O which may just make it slower.
	448	# Also note that if other software reads the mboxes/maildirs, they may handle
	449	# the extra CRs wrong and cause problems.
	450	#mail_save_crlf = no
	451
	452	##
	453	## Maildir-specific settings
	454	##
	455
	456	# By default LIST command returns all entries in maildir beginning with a dot.
	457	# Enabling this option makes Dovecot return only entries which are directories.
	458	# This is done by stat()ing each entry, so it causes more disk I/O.
	459	# (For systems setting struct dirent->d_type, this check is free and it's
	460	# done always regardless of this setting)
	461	#maildir_stat_dirs = no
	462
	463	# When copying a message, do it with hard links whenever possible. This makes
	464	# the performance much better, and it's unlikely to have any side effects.
	465	#maildir_copy_with_hardlinks = yes
	466
	467	# When copying a message, try to preserve the base filename. Only if the
	468	# destination mailbox already contains the same name (ie. the mail is being
	469	# copied there twice), a new name is given. The destination filename check is
	470	# done only by looking at dovecot-uidlist file, so if something outside
	471	# Dovecot does similar filename preserving copies, you may run into problems.
	472	# NOTE: This setting requires maildir_copy_with_hardlinks = yes to work.
	473	#maildir_copy_preserve_filename = no
	474
	475	# Assume Dovecot is the only MUA accessing Maildir: Scan cur/ directory only
	476	# when its mtime changes unexpectedly or when we can't find the mail otherwise.
	477	#maildir_very_dirty_syncs = no
	478
	479	##
	480	## mbox-specific settings
	481	##
	482
	483	# Which locking methods to use for locking mbox. There are four available:
	484	# dotlock: Create <mailbox>.lock file. This is the oldest and most NFS-safe
	485	# solution. If you want to use /var/mail/ like directory, the users
	486	# will need write access to that directory.
	487	# dotlock_try: Same as dotlock, but if it fails because of permissions or
	488	# because there isn't enough disk space, just skip it.
	489	# fcntl : Use this if possible. Works with NFS too if lockd is used.
	490	# flock : May not exist in all systems. Doesn't work with NFS.
	491	# lockf : May not exist in all systems. Doesn't work with NFS.
	492	#
	493	# You can use multiple locking methods; if you do the order they're declared
	494	# in is important to avoid deadlocks if other MTAs/MUAs are using multiple
	495	# locking methods as well. Some operating systems don't allow using some of
	496	# them simultaneously.
	497	#mbox_read_locks = fcntl
	498	#mbox_write_locks = dotlock fcntl
	499
	500	# Maximum time in seconds to wait for lock (all of them) before aborting.
	501	#mbox_lock_timeout = 300
	502
	503	# If dotlock exists but the mailbox isn't modified in any way, override the
	504	# lock file after this many seconds.
	505	#mbox_dotlock_change_timeout = 120
	506
	507	# When mbox changes unexpectedly we have to fully read it to find out what
	508	# changed. If the mbox is large this can take a long time. Since the change
	509	# is usually just a newly appended mail, it'd be faster to simply read the
	510	# new mails. If this setting is enabled, Dovecot does this but still safely
	511	# fallbacks to re-reading the whole mbox file whenever something in mbox isn't
	512	# how it's expected to be. The only real downside to this setting is that if
	513	# some other MUA changes message flags, Dovecot doesn't notice it immediately.
	514	# Note that a full sync is done with SELECT, EXAMINE, EXPUNGE and CHECK
	515	# commands.
	516	#mbox_dirty_syncs = yes
	517
	518	# Like mbox_dirty_syncs, but don't do full syncs even with SELECT, EXAMINE,
	519	# EXPUNGE or CHECK commands. If this is set, mbox_dirty_syncs is ignored.
	520	#mbox_very_dirty_syncs = no
	521
	522	# Delay writing mbox headers until doing a full write sync (EXPUNGE and CHECK
	523	# commands and when closing the mailbox). This is especially useful for POP3
	524	# where clients often delete all mails. The downside is that our changes
	525	# aren't immediately visible to other MUAs.
	526	#mbox_lazy_writes = yes
	527
	528	# If mbox size is smaller than this (in kilobytes), don't write index files.
	529	# If an index file already exists it's still read, just not updated.
	530	#mbox_min_index_size = 0
	531
	532	##
	533	## dbox-specific settings
	534	##
	535
	536	# Maximum dbox file size in kilobytes until it's rotated.
	537	#dbox_rotate_size = 2048
	538
	539	# Minimum dbox file size in kilobytes before it's rotated
	540	# (overrides dbox_rotate_days)
	541	#dbox_rotate_min_size = 16
	542
	543	# Maximum dbox file age in days until it's rotated. Day always begins from
	544	# midnight, so 1 = today, 2 = yesterday, etc. 0 = check disabled.
	545	#dbox_rotate_days = 0
	546
	547	##
	548	## IMAP specific settings
	549	##
	550
	551	protocol imap {
	552	# Login executable location.
	553	#login_executable = /usr/lib/dovecot/imap-login
	554
	555	# IMAP executable location. Changing this allows you to execute other
	556	# binaries before the imap process is executed.
	557	#
	558	# This would write rawlogs into user's ~/dovecot.rawlog/, if it exists:
	559	# mail_executable = /usr/lib/dovecot/rawlog /usr/lib/dovecot/imap
	560	# <doc/wiki/Debugging/Rawlog.txt>
	561	#
	562	# This would attach gdb into the imap process and write backtraces into
	563	# /tmp/gdbhelper.* files:
	564	# mail_executable = /usr/lib/dovecot/gdbhelper /usr/lib/dovecot/imap
	565	#
	566	#mail_executable = /usr/lib/dovecot/imap
	567	mail_executable = /usr/lib/dovecot/rawlog /usr/lib/dovecot/imap
	568
	569	# Maximum IMAP command line length in bytes. Some clients generate very long
	570	# command lines with huge mailboxes, so you may need to raise this if you get
	571	# "Too long argument" or "IMAP command line too large" errors often.
	572	#imap_max_line_length = 65536
	573
	574	# Maximum number of IMAP connections allowed for a user from each IP address.
	575	# NOTE: The username is compared case-sensitively.
	576	#mail_max_userip_connections = 10
	577
	578	# Support for dynamically loadable plugins. mail_plugins is a space separated
	579	# list of plugins to load.
	580	#mail_plugins =
	581	mail_plugins = quota imap_quota
	582	mail_plugin_dir = /usr/lib/dovecot/modules/imap
	583
	584	# IMAP logout format string:
	585	# %i - total number of bytes read from client
	586	# %o - total number of bytes sent to client
	587	#imap_logout_format = bytes=%i/%o
	588
	589	# Override the IMAP CAPABILITY response.
	590	#imap_capability =
	591
	592	# How many seconds to wait between "OK Still here" notifications when
	593	# client is IDLEing.
	594	#imap_idle_notify_interval = 120
	595
	596	# ID field names and values to send to clients. Using * as the value makes
	597	# Dovecot use the default value. The following fields have default values
	598	# currently: name, version, os, os-version, support-url, support-email.
	599	#imap_id_send =
	600
	601	# ID fields sent by client to log. * means everything.
	602	#imap_id_log =
	603
	604	# Workarounds for various client bugs:
	605	# delay-newmail:
	606	# Send EXISTS/RECENT new mail notifications only when replying to NOOP
	607	# and CHECK commands. Some clients ignore them otherwise, for example OSX
	608	# Mail (<v2.1). Outlook Express breaks more badly though, without this it
	609	# may show user "Message no longer in server" errors. Note that OE6 still
	610	# breaks even with this workaround if synchronization is set to
	611	# "Headers Only".
	612	# netscape-eoh:
	613	# Netscape 4.x breaks if message headers don't end with the empty "end of
	614	# headers" line. Normally all messages have this, but setting this
	615	# workaround makes sure that Netscape never breaks by adding the line if
	616	# it doesn't exist. This is done only for FETCH BODY[HEADER.FIELDS..]
	617	# commands. Note that RFC says this shouldn't be done.
	618	# tb-extra-mailbox-sep:
	619	# With mbox storage a mailbox can contain either mails or submailboxes,
	620	# but not both. Thunderbird separates these two by forcing server to
	621	# accept '/' suffix in mailbox names in subscriptions list.
	622	# The list is space-separated.
	623	#imap_client_workarounds =
	624	}
	625
	626	##
	627	## POP3 specific settings
	628	##
	629
	630	protocol pop3 {
	631	# Login executable location.
	632	#login_executable = /usr/lib/dovecot/pop3-login
	633
	634	# POP3 executable location. See IMAP's mail_executable above for examples
	635	# how this could be changed.
	636	#mail_executable = /usr/lib/dovecot/pop3
	637	mail_executable = /usr/lib/dovecot/rawlog /usr/lib/dovecot/pop3
	638
	639	# Don't try to set mails non-recent or seen with POP3 sessions. This is
	640	# mostly intended to reduce disk I/O. With maildir it doesn't move files
	641	# from new/ to cur/, with mbox it doesn't write Status-header.
	642	#pop3_no_flag_updates = no
	643
	644	# Support LAST command which exists in old POP3 specs, but has been removed
	645	# from new ones. Some clients still wish to use this though. Enabling this
	646	# makes RSET command clear all \Seen flags from messages.
	647	#pop3_enable_last = no
	648
	649	# If mail has X-UIDL header, use it as the mail's UIDL.
	650	#pop3_reuse_xuidl = no
	651
	652	# Keep the mailbox locked for the entire POP3 session.
	653	#pop3_lock_session = no
	654
	655	# POP3 UIDL (unique mail identifier) format to use. You can use following
	656	# variables, along with the variable modifiers described in
	657	# <doc/wiki/Variables.txt> (e.g. %Uf for the filename in uppercase)
	658	#
	659	# %v - Mailbox's IMAP UIDVALIDITY
	660	# %u - Mail's IMAP UID
	661	# %m - MD5 sum of the mailbox headers in hex (mbox only)
	662	# %f - filename (maildir only)
	663	#
	664	# If you want UIDL compatibility with other POP3 servers, use:
	665	# UW's ipop3d : %08Xv%08Xu
	666	# Courier : %f or %v-%u (both might be used simultaneosly)
	667	# Cyrus (<= 2.1.3) : %u
	668	# Cyrus (>= 2.1.4) : %v.%u
	669	# Dovecot v0.99.x : %v.%u
	670	# tpop3d : %Mf
	671	#
	672	# Note that Outlook 2003 seems to have problems with %v.%u format which was
	673	# Dovecot's default, so if you're building a new server it would be a good
	674	# idea to change this. %08Xu%08Xv should be pretty fail-safe.
	675	#
	676	#pop3_uidl_format = %08Xu%08Xv
	677	pop3_uidl_format = %08Xu%08Xv
	678
	679	# Permanently save UIDLs sent to POP3 clients, so pop3_uidl_format changes
	680	# won't change those UIDLs. Currently this works only with Maildir.
	681	#pop3_save_uidl = no
	682
	683	# POP3 logout format string:
	684	# %i - total number of bytes read from client
	685	# %o - total number of bytes sent to client
	686	# %t - number of TOP commands
	687	# %p - number of bytes sent to client as a result of TOP command
	688	# %r - number of RETR commands
	689	# %b - number of bytes sent to client as a result of RETR command
	690	# %d - number of deleted messages
	691	# %m - number of messages (before deletion)
	692	# %s - mailbox size in bytes (before deletion)
	693	#pop3_logout_format = top=%t/%p, retr=%r/%b, del=%d/%m, size=%s
	694
	695	# Maximum number of POP3 connections allowed for a user from each IP address.
	696	# NOTE: The username is compared case-sensitively.
	697	#mail_max_userip_connections = 3
	698
	699	# Support for dynamically loadable plugins. mail_plugins is a space separated
	700	# list of plugins to load.
	701	#mail_plugins =
	702	mail_plugins = quota
	703	mail_plugin_dir = /usr/lib/dovecot/modules/pop3
	704
	705	# Workarounds for various client bugs:
	706	# outlook-no-nuls:
	707	# Outlook and Outlook Express hang if mails contain NUL characters.
	708	# This setting replaces them with 0x80 character.
	709	# oe-ns-eoh:
	710	# Outlook Express and Netscape Mail breaks if end of headers-line is
	711	# missing. This option simply sends it if it's missing.
	712	# The list is space-separated.
	713	#pop3_client_workarounds =
	714	}
	715
	716	##
	717	## ManageSieve specific settings
	718	##
	719
	720	protocol managesieve {
	721	# Login executable location.
	722	#login_executable = /usr/lib/dovecot/managesieve-login
	723
	724	# ManageSieve executable location. See IMAP's mail_executable above for
	725	# examples how this could be changed.
	726	#mail_executable = /usr/lib/dovecot/managesieve
	727
	728	# Maximum ManageSieve command line length in bytes. This setting is
	729	# directly borrowed from IMAP. But, since long command lines are very
	730	# unlikely with ManageSieve, changing this will not be very useful.
	731	#managesieve_max_line_length = 65536
	732
	733	# ManageSieve logout format string:
	734	# %i - total number of bytes read from client
	735	# %o - total number of bytes sent to client
	736	#managesieve_logout_format = bytes=%i/%o
	737
	738	# If, for some inobvious reason, the sieve_storage remains unset, the
	739	# ManageSieve daemon uses the specification of the mail_location to find out
	740	# where to store the sieve files (see explaination in README.managesieve).
	741	# The example below, when uncommented, overrides any global mail_location
	742	# specification and stores all the scripts in '~/mail/sieve' if sieve_storage
	743	# is unset. However, you should always use the sieve_storage setting.
	744	# mail_location = mbox:~/mail
	745
	746	# To fool ManageSieve clients that are focused on timesieved you can
	747	# specify the IMPLEMENTATION capability that the dovecot reports to clients
	748	# (default: "dovecot").
	749	#managesieve_implementation_string = Cyrus timsieved v2.2.13
	750	}
	751
	752	##
	753	## LDA specific settings
	754	##
	755
	756	protocol lda {
	757	# Address to use when sending rejection mails.
	758	postmaster_address = postmaster@example.com
	759
	760	# Hostname to use in various parts of sent mails, eg. in Message-Id.
	761	# Default is the system's real hostname.
	762	#hostname =
	763
	764	# Support for dynamically loadable plugins. mail_plugins is a space separated
	765	# list of plugins to load.
	766	#mail_plugins =
	767	mail_plugins = sieve quota
	768	mail_plugin_dir = /usr/lib/dovecot/modules/lda
	769
	770	# If user is over quota, return with temporary failure instead of
	771	# bouncing the mail.
	772	#quota_full_tempfail = no
	773
	774	# Format to use for logging mail deliveries. You can use variables:
	775	# %$ - Delivery status message (e.g. "saved to INBOX")
	776	# %m - Message-ID
	777	# %s - Subject
	778	# %f - From address
	779	#deliver_log_format = msgid=%m: %$
	780
	781	# Binary to use for sending mails.
	782	#sendmail_path = /usr/lib/sendmail
	783
	784	# Subject: header to use for rejection mails. You can use the same variables
	785	# as for rejection_reason below.
	786	#rejection_subject = Rejected: %s
	787
	788	# Human readable error message for rejection mails. You can use variables:
	789	# %n = CRLF, %r = reason, %s = original subject, %t = recipient
	790	#rejection_reason = Your message to <%t> was automatically rejected:%n%r
	791
	792	# UNIX socket path to master authentication server to find users.
	793	auth_socket_path = /var/run/dovecot/auth-master
	794	}
	795
	796	##
	797	## Authentication processes
	798	##
	799
	800	# Executable location
	801	#auth_executable = /usr/lib/dovecot/dovecot-auth
	802
	803	# Set max. process size in megabytes.
	804	#auth_process_size = 256
	805
	806	# Authentication cache size in kilobytes. 0 means it's disabled.
	807	# Note that bsdauth, PAM and vpopmail require cache_key to be set for caching
	808	# to be used.
	809	#auth_cache_size = 0
	810	# Time to live in seconds for cached data. After this many seconds the cached
	811	# record is no longer used, except if the main database lookup returns
	812	# internal failure. We also try to handle password changes automatically: If
	813	# user's previous authentication was successful, but this one wasn't, the
	814	# cache isn't used. For now this works only with plaintext authentication.
	815	#auth_cache_ttl = 3600
	816	# TTL for negative hits (user not found, password mismatch).
	817	# 0 disables caching them completely.
	818	#auth_cache_negative_ttl = 3600
	819
	820	# Space separated list of realms for SASL authentication mechanisms that need
	821	# them. You can leave it empty if you don't want to support multiple realms.
	822	# Many clients simply use the first one listed here, so keep the default realm
	823	# first.
	824	#auth_realms =
	825
	826	# Default realm/domain to use if none was specified. This is used for both
	827	# SASL realms and appending @domain to username in plaintext logins.
	828	#auth_default_realm =
	829
	830	# List of allowed characters in username. If the user-given username contains
	831	# a character not listed in here, the login automatically fails. This is just
	832	# an extra check to make sure user can't exploit any potential quote escaping
	833	# vulnerabilities with SQL/LDAP databases. If you want to allow all characters,
	834	# set this value to empty.
	835	#auth_username_chars = abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@
	836
	837	# Username character translations before it's looked up from databases. The
	838	# value contains series of from -> to characters. For example "#@/@" means
	839	# that '#' and '/' characters are translated to '@'.
	840	#auth_username_translation =
	841
	842	# Username formatting before it's looked up from databases. You can use
	843	# the standard variables here, eg. %Lu would lowercase the username, %n would
	844	# drop away the domain if it was given, or "%n-AT-%d" would change the '@' into
	845	# "-AT-". This translation is done after auth_username_translation changes.
	846	#auth_username_format =
	847
	848	# If you want to allow master users to log in by specifying the master
	849	# username within the normal username string (ie. not using SASL mechanism's
	850	# support for it), you can specify the separator character here. The format
	851	# is then <username><separator><master username>. UW-IMAP uses "*" as the
	852	# separator, so that could be a good choice.
	853	#auth_master_user_separator =
	854
	855	# Username to use for users logging in with ANONYMOUS SASL mechanism
	856	#auth_anonymous_username = anonymous
	857
	858	# Log unsuccessful authentication attempts and the reasons why they failed.
	859	#auth_verbose = no
	860
	861	# Even more verbose logging for debugging purposes. Shows for example SQL
	862	# queries.
	863	#auth_debug = no
	864
	865	# In case of password mismatches, log the passwords and used scheme so the
	866	# problem can be debugged. Enabling this also enables auth_debug.
	867	#auth_debug_passwords = no
	868
	869	# Maximum number of dovecot-auth worker processes. They're used to execute
	870	# blocking passdb and userdb queries (eg. MySQL and PAM). They're
	871	# automatically created and destroyed as needed.
	872	#auth_worker_max_count = 30
	873
	874	# Host name to use in GSSAPI principal names. The default is to use the
	875	# name returned by gethostname(). Use "$ALL" to allow all keytab entries.
	876	#auth_gssapi_hostname =
	877
	878	# Kerberos keytab to use for the GSSAPI mechanism. Will use the system
	879	# default (usually /etc/krb5.keytab) if not specified.
	880	#auth_krb5_keytab =
	881
	882	# Do NTLM and GSS-SPNEGO authentication using Samba's winbind daemon and
	883	# ntlm_auth helper. <doc/wiki/Authentication/Mechanisms/Winbind.txt>
	884	#auth_use_winbind = no
	885
	886	# Path for Samba's ntlm_auth helper binary.
	887	#auth_winbind_helper_path = /usr/bin/ntlm_auth
	888
	889	# Number of seconds to delay before replying to failed authentications.
	890	#auth_failure_delay = 2
	891
	892	auth default {
	893	# Space separated list of wanted authentication mechanisms:
	894	# plain login digest-md5 cram-md5 ntlm rpa apop anonymous gssapi otp skey
	895	# gss-spnego
	896	# NOTE: See also disable_plaintext_auth setting.
	897	mechanisms = plain login
	898
	899	#
	900	# Password database is used to verify user's password (and nothing more).
	901	# You can have multiple passdbs and userdbs. This is useful if you want to
	902	# allow both system users (/etc/passwd) and virtual users to login without
	903	# duplicating the system users into virtual database.
	904	#
	905	# <doc/wiki/PasswordDatabase.txt>
	906	#
	907	# By adding master=yes setting inside a passdb you make the passdb a list
	908	# of "master users", who can log in as anyone else. Unless you're using PAM,
	909	# you probably still want the destination user to be looked up from passdb
	910	# that it really exists. This can be done by adding pass=yes setting to the
	911	# master passdb. <doc/wiki/Authentication.MasterUsers.txt>
	912
	913	# Users can be temporarily disabled by adding a passdb with deny=yes.
	914	# If the user is found from that database, authentication will fail.
	915	# The deny passdb should always be specified before others, so it gets
	916	# checked first. Here's an example:
	917
	918	#passdb passwd-file {
	919	# File contains a list of usernames, one per line
	920	#args = /etc/dovecot.deny
	921	#deny = yes
	922	#}
	923
	924	# PAM authentication. Preferred nowadays by most systems.
	925	# Note that PAM can only be used to verify if user's password is correct,
	926	# so it can't be used as userdb. If you don't want to use a separate user
	927	# database (passwd usually), you can use static userdb.
	928	# REMEMBER: You'll need /etc/pam.d/dovecot file created for PAM
	929	# authentication to actually work. <doc/wiki/PasswordDatabase.PAM.txt>
	930	passdb pam {
	931	# [session=yes] [setcred=yes] [failure_show_msg=yes] [max_requests=<n>]
	932	# [cache_key=<key>] [<service name>]
	933	#
	934	# session=yes makes Dovecot open and immediately close PAM session. Some
	935	# PAM plugins need this to work, such as pam_mkhomedir.
	936	#
	937	# setcred=yes makes Dovecot establish PAM credentials if some PAM plugins
	938	# need that. They aren't ever deleted though, so this isn't enabled by
	939	# default.
	940	#
	941	# max_requests specifies how many PAM lookups to do in one process before
	942	# recreating the process. The default is 100, because many PAM plugins
	943	# leak memory.
	944	#
	945	# cache_key can be used to enable authentication caching for PAM
	946	# (auth_cache_size also needs to be set). It isn't enabled by default
	947	# because PAM modules can do all kinds of checks besides checking password,
	948	# such as checking IP address. Dovecot can't know about these checks
	949	# without some help. cache_key is simply a list of variables (see
	950	# doc/wiki/Variables.txt) which must match for the cached data to be used.
	951	# Here are some examples:
	952	# %u - Username must match. Probably sufficient for most uses.
	953	# %u%r - Username and remote IP address must match.
	954	# %u%s - Username and service (ie. IMAP, POP3) must match.
	955	#
	956	# The service name can contain variables, for example %Ls expands to
	957	# pop3 or imap.
	958	#
	959	# Some examples:
	960	# args = session=yes %Ls
	961	# args = cache_key=%u dovecot
	962	#args = dovecot
	963	}
	964
	965	# System users (NSS, /etc/passwd, or similiar)
	966	# In many systems nowadays this uses Name Service Switch, which is
	967	# configured in /etc/nsswitch.conf. <doc/wiki/AuthDatabase.Passwd.txt>
	968	#passdb passwd {
	969	# [blocking=yes] - See userdb passwd for explanation
	970	#args =
	971	#}
	972
	973	# Shadow passwords for system users (NSS, /etc/shadow or similiar).
	974	# Deprecated by PAM nowadays.
	975	# <doc/wiki/PasswordDatabase.Shadow.txt>
	976	#passdb shadow {
	977	# [blocking=yes] - See userdb passwd for explanation
	978	#args =
	979	#}
	980
	981	# PAM-like authentication for OpenBSD.
	982	# <doc/wiki/PasswordDatabase.BSDAuth.txt>
	983	#passdb bsdauth {
	984	# [cache_key=<key>] - See cache_key in PAM for explanation.
	985	#args =
	986	#}
	987
	988	# passwd-like file with specified location
	989	# <doc/wiki/AuthDatabase.PasswdFile.txt>
	990	#passdb passwd-file {
	991	# [scheme=<default password scheme>] [username_format=<format>]
	992	# <Path for passwd-file>
	993	#args =
	994	#}
	995
	996	# checkpassword executable authentication
	997	# NOTE: You will probably want to use "userdb prefetch" with this.
	998	# <doc/wiki/AuthDatabase.CheckPassword.txt>
	999	#passdb checkpassword {
	1000	# Path for checkpassword binary
	1001	#args =
	1002	#}
	1003
	1004	# SQL database <doc/wiki/AuthDatabase.SQL.txt>
	1005	passdb sql {
	1006	# Path for SQL configuration file, see doc/dovecot-sql-example.conf
	1007	args = /etc/dovecot/dovecot-sql.conf
	1008	}
	1009
	1010	# LDAP database <doc/wiki/AuthDatabase.LDAP.txt>
	1011	#passdb ldap {
	1012	# Path for LDAP configuration file, see doc/dovecot-ldap-example.conf
	1013	#args =
	1014	#}
	1015
	1016	# vpopmail authentication <doc/wiki/AuthDatabase.VPopMail.txt>
	1017	#passdb vpopmail {
	1018	# [cache_key=<key>] - See cache_key in PAM for explanation.
	1019	# [quota_template=<template>] - %q expands to Maildir++ quota
	1020	# (eg. quota_template=quota_rule=*:backend=%q)
	1021	#args =
	1022	#}
	1023
	1024	#
	1025	# User database specifies where mails are located and what user/group IDs
	1026	# own them. For single-UID configuration use "static".
	1027	#
	1028	# <doc/wiki/UserDatabase.txt>
	1029	#
	1030
	1031	# "prefetch" user database means that the passdb already provided the
	1032	# needed information and there's no need to do a separate userdb lookup.
	1033	# This can be made to work with SQL and LDAP databases, see their example
	1034	# configuration files for more information how to do it.
	1035	# <doc/wiki/UserDatabase.Prefetch.txt>
03b633	1036	userdb prefetch {
D	1037	}
fdb514	1038
T	1039	# System users (NSS, /etc/passwd, or similiar). In many systems nowadays this
	1040	# uses Name Service Switch, which is configured in /etc/nsswitch.conf.
	1041	# <doc/wiki/AuthDatabase.Passwd.txt>
	1042	userdb passwd {
	1043	# [blocking=yes] - By default the lookups are done in the main dovecot-auth
	1044	# process. This setting causes the lookups to be done in auth worker
	1045	# proceses. Useful with remote NSS lookups that may block.
	1046	# NOTE: Be sure to use this setting with nss_ldap or users might get
	1047	# logged in as each others!
	1048	#args =
	1049	}
	1050
	1051	# passwd-like file with specified location
	1052	# <doc/wiki/AuthDatabase.PasswdFile.txt>
	1053	#userdb passwd-file {
	1054	# [username_format=<format>] <Path for passwd-file>
	1055	#args =
	1056	#}
	1057
	1058	# checkpassword executable user database lookup
	1059	# <doc/wiki/AuthDatabase.CheckPassword.txt>
	1060	#userdb checkpassword {
	1061	# Path for checkpassword binary
	1062	#args =
	1063	#}
	1064
	1065	# static settings generated from template <doc/wiki/UserDatabase.Static.txt>
	1066	#userdb static {
	1067	# Template for the fields. Can return anything a userdb could normally
	1068	# return. For example:
	1069	#
	1070	# args = uid=500 gid=500 home=/var/mail/%u
	1071	#
	1072	# If you use deliver, it needs to look up users only from the userdb. This
	1073	# of course doesn't work with static because there is no list of users.
	1074	# Normally static userdb handles this by doing a passdb lookup. This works
	1075	# with most passdbs, with PAM being the most notable exception. If you do
	1076	# the user verification another way, you can add allow_all_users=yes to
	1077	# the args in which case the passdb lookup is skipped.
	1078	#
	1079	#args =
	1080	#}
	1081
	1082	# SQL database <doc/wiki/AuthDatabase.SQL.txt>
	1083	userdb sql {
	1084	# Path for SQL configuration file, see doc/dovecot-sql-example.conf
	1085	args = /etc/dovecot/dovecot-sql.conf
	1086	}
	1087
	1088	# LDAP database <doc/wiki/AuthDatabase.LDAP.txt>
	1089	#userdb ldap {
	1090	# Path for LDAP configuration file, see doc/dovecot-ldap-example.conf
	1091	#args =
	1092	#}
	1093
	1094	# vpopmail <doc/wiki/AuthDatabase.VPopMail.txt>
	1095	#userdb vpopmail {
	1096	#}
	1097
	1098	# User to use for the process. This user needs access to only user and
	1099	# password databases, nothing else. Only shadow and pam authentication
	1100	# requires roots, so use something else if possible. Note that passwd
	1101	# authentication with BSDs internally accesses shadow files, which also
	1102	# requires roots. Note that this user is NOT used to access mails.
	1103	# That user is specified by userdb above.
	1104	user = root
	1105
	1106	# Directory where to chroot the process. Most authentication backends don't
	1107	# work if this is set, and there's no point chrooting if auth_user is root.
	1108	# Note that valid_chroot_dirs isn't needed to use this setting.
	1109	#chroot =
	1110
	1111	# Number of authentication processes to create
	1112	#count = 1
	1113
	1114	# Require a valid SSL client certificate or the authentication fails.
	1115	#ssl_require_client_cert = no
	1116
	1117	# Take the username from client's SSL certificate, using
	1118	# X509_NAME_get_text_by_NID() which returns the subject's DN's
	1119	# CommonName.
	1120	#ssl_username_from_cert = no
	1121
	1122	# It's possible to export the authentication interface to other programs:
	1123	socket listen {
	1124	master {
	1125	# Master socket provides access to userdb information. It's typically
	1126	# used to give Dovecot's local delivery agent access to userdb so it
	1127	# can find mailbox locations.
	1128	path = /var/run/dovecot/auth-master
	1129	mode = 0600
	1130	# Default user/group is the one who started dovecot-auth (root)
	1131	user = vmail
	1132	#group =
	1133	}
	1134	client {
	1135	# The client socket is generally safe to export to everyone. Typical use
	1136	# is to export it to your SMTP server so it can do SMTP AUTH lookups
	1137	# using it.
	1138	path = /var/spool/postfix/private/auth
	1139	mode = 0660
	1140	user = postfix
	1141	group = postfix
	1142	}
	1143	}
	1144	}
	1145
	1146	# If you wish to use another authentication server than dovecot-auth, you can
	1147	# use connect sockets. They are assumed to be already running, Dovecot's master
	1148	# process only tries to connect to them. They don't need any other settings
	1149	# than the path for the master socket, as the configuration is done elsewhere.
	1150	# Note that the client sockets must exist in the login_dir.
	1151	#auth external {
	1152	# socket connect {
	1153	# master {
	1154	# path = /var/run/dovecot/auth-master
	1155	# }
	1156	# }
	1157	#}
	1158
	1159	##
	1160	## Dictionary server settings
	1161	##
	1162
	1163	# Dictionary can be used by some plugins to store key=value lists, such as
	1164	# quota, expire and acl plugins. The dictionary can be used either directly or
	1165	# though a dictionary server. The following dict block maps dictionary names to
	1166	# URIs when the server is used. These can then be referenced using URIs in
	1167	# format "proxy::<name>".
	1168
	1169	dict {
	1170	#quota = mysql:/etc/dovecot-dict-quota.conf
	1171	#expire = db:/var/lib/dovecot/expire.db
	1172	}
	1173
	1174	# Path to Berkeley DB's configuration file. See doc/dovecot-db-example.conf
	1175	#dict_db_config =
	1176
	1177	##
	1178	## Plugin settings
	1179	##
	1180
	1181	plugin {
	1182	# Here you can give some extra environment variables to mail processes.
	1183	# This is mostly meant for passing parameters to plugins. %variable
	1184	# expansion is done for all values.
	1185
	1186	# Quota plugin. Multiple backends are supported:
	1187	# dirsize: Find and sum all the files found from mail directory.
	1188	# Extremely SLOW with Maildir. It'll eat your CPU and disk I/O.
	1189	# dict: Keep quota stored in dictionary (eg. SQL)
	1190	# maildir: Maildir++ quota
	1191	# fs: Read-only support for filesystem quota
	1192	#
	1193	# Quota limits are set using "quota_rule" parameters, either in here or in
	1194	# userdb. It's also possible to give mailbox-specific limits, for example:
	1195	# quota_rule = *:storage=1048576
	1196	# quota_rule2 = Trash:storage=102400
	1197	# User has now 1GB quota, but when saving to Trash mailbox the user gets
	1198	# additional 100MB.
	1199	#
	1200	# Multiple quota roots are also possible, for example:
	1201	# quota = dict:user::proxy::quota
	1202	# quota2 = dict:domain:%d:proxy::quota_domain
	1203	# quota_rule = *:storage=102400
	1204	# quota2_rule = *:storage=1048576
	1205	# Gives each user their own 100MB quota and one shared 1GB quota within
	1206	# the domain.
	1207	#
	1208	# You can execute a given command when user exceeds a specified quota limit.
	1209	# Each quota root has separate limits. Only the command for the first
	1210	# exceeded limit is excecuted, so put the highest limit first.
	1211	# Note that % needs to be escaped as %%, otherwise "% " expands to empty.
	1212	# quota_warning = storage=95%% /usr/local/bin/quota-warning.sh 95
	1213	# quota_warning2 = storage=80%% /usr/local/bin/quota-warning.sh 80
	1214	#quota = maildir
	1215	quota = maildir
	1216
	1217	# ACL plugin. vfile backend reads ACLs from "dovecot-acl" file from maildir
	1218	# directory. You can also optionally give a global ACL directory path where
	1219	# ACLs are applied to all users' mailboxes. The global ACL directory contains
	1220	# one file for each mailbox, eg. INBOX or sub.mailbox. cache_secs parameter
	1221	# specifies how many seconds to wait between stat()ing dovecot-acl file
	1222	# to see if it changed.
	1223	#acl = vfile:/etc/dovecot-acls:cache_secs=300
	1224
	1225	# To let users LIST mailboxes shared by other users, Dovecot needs a
	1226	# shared mailbox dictionary. For example:
	1227	#acl_shared_dict = file:/var/lib/dovecot/shared-mailboxes
	1228
	1229	# Convert plugin. If set, specifies the source storage path which is
	1230	# converted to destination storage (mail_location) when the user logs in.
	1231	# The existing mail directory is renamed to <dir>-converted.
	1232	#convert_mail = mbox:%h/mail
	1233	# Skip mailboxes which we can't open successfully instead of aborting.
	1234	#convert_skip_broken_mailboxes = no
	1235	# Skip directories beginning with '.'
	1236	#convert_skip_dotdirs = no
	1237	# If source storage has mailbox names with destination storage's hierarchy
	1238	# separators, replace them with this character.
	1239	#convert_alt_hierarchy_char = _
	1240
	1241	# Trash plugin. When saving a message would make user go over quota, this
	1242	# plugin automatically deletes the oldest mails from configured mailboxes
	1243	# until the message can be saved within quota limits. The configuration file
	1244	# is a text file where each line is in format: <priority> <mailbox name>
	1245	# Mails are first deleted in lowest -> highest priority number order
	1246	#trash = /etc/dovecot-trash.conf
	1247
	1248	# Expire plugin. Mails are expunged from mailboxes after being there the
	1249	# configurable time. The first expiration date for each mailbox is stored in
	1250	# a dictionary so it can be quickly determined which mailboxes contain
	1251	# expired mails. The actual expunging is done in a nightly cronjob, which
	1252	# you must set up:
	1253	# dovecot --exec-mail ext /usr/lib/dovecot/expire-tool
	1254	#expire = Trash 7 Spam 30
	1255	#expire_dict = proxy::expire
	1256
	1257	# Lazy expunge plugin. Currently works only with maildirs. When a user
	1258	# expunges mails, the mails are moved to a mailbox in another namespace
	1259	# (1st). When a mailbox is deleted, the mailbox is moved to another namespace
	1260	# (2nd) as well. Also if the deleted mailbox had any expunged messages,
	1261	# they're moved to a 3rd namespace. The mails won't be counted in quota,
	1262	# and they're not deleted automatically (use a cronjob or something).
	1263	#lazy_expunge = .EXPUNGED/ .DELETED/ .DELETED/.EXPUNGED/
	1264
	1265	# Events to log. Also available: flag_change append
	1266	#mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename
	1267	# Group events within a transaction to one line.
	1268	#mail_log_group_events = no
	1269	# Available fields: uid, box, msgid, from, subject, size, vsize, flags
	1270	# size and vsize are available only for expunge and copy events.
	1271	#mail_log_fields = uid box msgid size
	1272
	1273	# Sieve plugin (http://wiki.dovecot.org/LDA/Sieve) and ManageSieve service
	1274	#
	1275	# Location of the active script. When ManageSieve is used this is actually
	1276	# a symlink pointing to the active script in the sieve storage directory.
	1277	sieve=~/.dovecot.sieve
	1278	#
	1279	# The path to the directory where the personal Sieve scripts are stored. For
	1280	# ManageSieve this is where the uploaded scripts are stored.
	1281	sieve_dir=~/sieve
	1282	}
	1283
	1284	# Config files can also be included. deliver doesn't support them currently.
	1285	#!include /etc/dovecot/conf.d/*.conf
	1286	# Optional configurations, don't give an error if it's not found:
	1287	#!include_try /etc/dovecot/extra.conf