From b9a3ef486ebcde18a5ade37865ff8f397185d24f Mon Sep 17 00:00:00 2001
From: Till Brehm <tbrehm@ispconfig.org>
Date: Sun, 24 Jul 2016 05:30:59 -0400
Subject: [PATCH] Fixed #3979 Mailbox users unable to save autoresponders

---
 install/tpl/debian6_dovecot2.conf.master |   15 ++++++++++++---
 1 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/install/tpl/debian6_dovecot2.conf.master b/install/tpl/debian6_dovecot2.conf.master
index 5b04c61..669e19f 100644
--- a/install/tpl/debian6_dovecot2.conf.master
+++ b/install/tpl/debian6_dovecot2.conf.master
@@ -1,14 +1,19 @@
 listen = *,[::]
-protocols = imap pop3 lmtp
+protocols = imap pop3
 auth_mechanisms = plain login
 disable_plaintext_auth = no
 log_timestamp = "%Y-%m-%d %H:%M:%S "
 mail_privileged_group = vmail
 ssl_cert = </etc/postfix/smtpd.cert
 ssl_key = </etc/postfix/smtpd.key
+ssl_protocols = !SSLv2 !SSLv3
+mail_max_userip_connections = 100
 passdb {
   args = /etc/dovecot/dovecot-sql.conf
   driver = sql
+}
+userdb {
+  driver = prefetch
 }
 userdb {
   args = /etc/dovecot/dovecot-sql.conf
@@ -17,6 +22,7 @@
 plugin {
   quota = dict:user::file:/var/vmail/%d/%n/.quotausage
   sieve=/var/vmail/%d/%n/.sieve
+  sieve_max_redirects = 25
 }
 service auth {
   unix_listener /var/spool/postfix/private/auth {
@@ -36,11 +42,14 @@
    group = postfix
    mode = 0600
    user = postfix
+   # For higher volume sites, it may be desirable to increase the number of active listener processes. 
+   # A range of 5 to 20 is probably good for most sites
+#   process_min_avail = 5
   }
 }
 service imap-login {
   client_limit = 1000
-  process_limit = 500
+  process_limit = 512
 }
 protocol imap {
   mail_plugins = quota imap_quota
@@ -55,4 +64,4 @@
 protocol lmtp {
   postmaster_address = webmaster@localhost
   mail_plugins = quota sieve
-}
\ No newline at end of file
+}

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