Delayed outgoing mail in active queue - postfix-mta

Question

I am stuck for some time trying to set up an email server. I've been mostly successful in my setup, but I am currently stuck at the following impasse: every time I send an email (regardless of queue size), my message will get stuck in the active queue for ~ 5 minutes, after which it will always be sent and reach it's final destination.
postqueue -p
(shows only one mail in the queue)
postqueue -f
... has no effect
I am running postfix 3.1.0, and dovecot 2.2.22 on Ubuntu 16.04. Also, I used iRedMail scripts for the installation. I can see from /var/log/mail.log that the mail is being stored in a queue by postfix, and I'm assuming there's another setting to set the time at which it will be processed. Any help would be most appreciated.
/var/log/mail.log
Jan 9 14:35:28 mail postfix[26070]: name_mask: all
Jan 9 14:35:28 mail postfix[26070]: inet_addr_local: configured 2 IPv4 addresses
Jan 9 14:35:28 mail postfix[26070]: inet_addr_local: configured 3 IPv6 addresses
Jan 9 14:35:28 mail postfix/postfix-script[26075]: error: unknown command: ''
Jan 9 14:35:28 mail postfix/postfix-script[26076]: fatal: usage: postfix start (or stop, reload, abort, flush, check, status, set-permissions, upgrade-configuration)
Jan 9 14:35:49 mail postfix[26085]: fatal: usage: postfix [-c config_dir] [-Dv] command
Jan 9 14:35:58 mail postfix[26090]: fatal: usage: postfix [-c config_dir] [-Dv] command
Jan 9 14:40:17 mail postfix/submission/smtpd[26282]: connect from mail.example.com[127.0.0.1]
Jan 9 14:40:17 mail postfix/submission/smtpd[26282]: Anonymous TLS connection established from mail.example.com[127.0.0.1]: TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)
Jan 9 14:40:17 mail postfix/submission/smtpd[26282]: 87ABB42362: client=mail.example.com[127.0.0.1], sasl_method=PLAIN, sasl_username=jamal#example.com
Jan 9 14:40:17 mail postfix/cleanup[26288]: 87ABB42362: message-id=<0130a1e7b419fdf0f31ce406618aef97#example.com>
Jan 9 14:40:17 mail postfix/qmgr[28474]: 87ABB42362: from=, size=1845, nrcpt=1 (queue active)
Jan 9 14:40:17 mail postfix/submission/smtpd[26282]: disconnect from mail.example.com[127.0.0.1] ehlo=2 starttls=1 auth=1 mail=1 rcpt=1 data=1 quit=1 commands=8
Jan 9 14:45:05 mail amavis[10642]: (10642-08) (!)ClamAV-clamd av-scanner FAILED: run_av error: ask_daemon_internal: Exceeded allowed time at (eval 104) line 611.\n
Jan 9 14:45:05 mail amavis[10642]: (10642-08) (!)WARN: all primary virus scanners failed, considering backups
Jan 9 14:45:05 mail amavis[10642]: (10642-08) (!!)AV: ALL VIRUS SCANNERS FAILED
Jan 9 14:45:07 mail postfix/postqueue[26446]: fatal: usage: postqueue -f | postqueue -i queueid | postqueue -j | postqueue -p | postqueue -s site
Jan 9 14:45:08 mail postfix/10025/smtpd[26452]: connect from mail.example.com[127.0.0.1]
Jan 9 14:45:08 mail postfix/10025/smtpd[26452]: 60ADA423BA: client=mail.example.com[127.0.0.1]
Jan 9 14:45:08 mail postfix/cleanup[26454]: 60ADA423BA: message-id=<0130a1e7b419fdf0f31ce406618aef97#example.com>
Jan 9 14:45:08 mail postfix/10025/smtpd[26452]: disconnect from mail.example.com[127.0.0.1] ehlo=1 mail=1 rcpt=1 data=1 quit=1 commands=5
Jan 9 14:45:08 mail postfix/qmgr[28474]: 60ADA423BA: from=, size=2920, nrcpt=1 (queue active)
Jan 9 14:45:08 mail amavis[10642]: (10642-08) Passed UNCHECKED {RelayedInternal}, ORIGINATING/MYNETS LOCAL [127.0.0.1]:33748 -> , Queue-ID: 87ABB42362, Message-ID: <0130a1e7b419fdf0f31ce406618aef97#example.com>, mail_id: FFIMhQZ3j_4G, Hits: 0.204, size: 1845, queued_as: 60ADA423BA, dkim_new=dkim:example.com, 290782 ms, Tests: [ALL_TRUSTED=-1,HTML_MESSAGE=0.001,TVD_RCVD_SINGLE=1.213,T_RP_MATCHES_RCVD=-0.01]
Jan 9 14:45:08 mail postfix/amavis/smtp[26293]: 87ABB42362: to=, relay=127.0.0.1[127.0.0.1]:10026, delay=291, delays=0.16/0.03/0.04/291, dsn=2.0.0, status=sent (250 2.0.0 from MTA(smtp:[127.0.0.1]:10025): 250 2.0.0 Ok: queued as 60ADA423BA)
Jan 9 14:45:08 mail postfix/qmgr[28474]: 87ABB42362: removed
Jan 9 14:45:09 mail postfix/smtp[26455]: Untrusted TLS connection established to cornellprod-mail-onmicrosoft-com.mail.eo.outlook.com[216.32.181.106]:25: TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)
Jan 9 14:45:09 mail postfix/smtp[26455]: 60ADA423BA: to=, relay=cornellprod-mail-onmicrosoft-com.mail.eo.outlook.com[216.32.181.106]:25, delay=1.6, delays=0.02/0.03/0.64/0.89, dsn=2.6.0, status=sent (250 2.6.0 <0130a1e7b419fdf0f31ce406618aef97#example.com> [InternalId=132499741090511, Hostname=BN3PR0401MB1284.namprd04.prod.outlook.com] 10597 bytes in 0.347, 29.819 KB/sec Queued mail for delivery)
Jan 9 14:45:09 mail postfix/qmgr[28474]: 60ADA423BA: removed
Jan 9 14:45:20 mail postfix/postqueue[26468]: fatal: Flush service is not configured for destination "active"
/etc/postfix/main.cf
# --------------------
# INSTALL-TIME CONFIGURATION INFORMATION
#
# location of the Postfix queue. Default is /var/spool/postfix. queue_directory = /var/spool/postfix
# location of all postXXX commands. Default is /usr/sbin. command_directory = /usr/sbin
# location of all Postfix daemon programs (i.e. programs listed in the
# master.cf file). This directory must be owned by root.
# Default is /usr/libexec/postfix daemon_directory = /usr/lib/postfix/sbin
# location of Postfix-writable data files (caches, random numbers).
# This directory must be owned by the mail_owner account (see below).
# Default is /var/lib/postfix. data_directory = /var/lib/postfix
# owner of the Postfix queue and of most Postfix daemon processes.
# Specify the name of a user account THAT DOES NOT SHARE ITS USER OR GROUP ID
# WITH OTHER ACCOUNTS AND THAT OWNS NO OTHER FILES OR PROCESSES ON THE SYSTEM.
# In particular, don't specify nobody or daemon. PLEASE USE A DEDICATED USER.
# Default is postfix. mail_owner = postfix
# The following parameters are used when installing a new Postfix version.
#
# sendmail_path: The full pathname of the Postfix sendmail command.
# This is the Sendmail-compatible mail posting interface.
# sendmail_path = /usr/sbin/sendmail
# newaliases_path: The full pathname of the Postfix newaliases command.
# This is the Sendmail-compatible command to build alias databases.
# newaliases_path = /usr/bin/newaliases
# full pathname of the Postfix mailq command. This is the Sendmail-compatible
# mail queue listing command. mailq_path = /usr/bin/mailq
# group for mail submission and queue management commands.
# This must be a group name with a numerical group ID that is not shared with
# other accounts, not even with the Postfix account. setgid_group = postdrop
# debugger_command =
PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin
ddd $daemon_directory/$process_name $process_id & sleep 5
debug_peer_level = 2
# --------------------
# CUSTOM SETTINGS
#
# SMTP server response code when recipient or domain not found. unknown_local_recipient_reject_code = 550
# Do not notify local user. biff = no
# Disable the rewriting of "site!user" into "user#site". swap_bangpath = no
# Disable the rewriting of the form "user%domain" to "user#domain". allow_percent_hack = no
# Allow recipient address start with '-'. allow_min_user = no
# Disable the SMTP VRFY command. This stops some techniques used to
# harvest email addresses. disable_vrfy_command = yes
# Enable both IPv4 and/or IPv6: ipv4, ipv6, all. inet_protocols = all
# Enable all network interfaces. inet_interfaces = all
#
# TLS settings.
#
# SSL key, certificate, CA
# smtpd_tls_key_file = /etc/letsencrypt/live/mail.example.com/privkey.pem
smtpd_tls_cert_file = /etc/letsencrypt/live/mail.example.com/cert.pem
smtpd_tls_CAfile = /etc/letsencrypt/live/mail.example.com/chain.pem
#
# Disable SSLv2, SSLv3
# smtpd_tls_protocols = !SSLv2 !SSLv3 smtpd_tls_mandatory_protocols = !SSLv2 !SSLv3 smtp_tls_protocols = !SSLv2 !SSLv3
smtp_tls_mandatory_protocols = !SSLv2 !SSLv3 lmtp_tls_protocols =
!SSLv2 !SSLv3 lmtp_tls_mandatory_protocols = !SSLv2 !SSLv3
#
# Fix 'The Logjam Attack'.
# smtpd_tls_exclude_ciphers = aNULL, eNULL, EXPORT, DES, RC4, MD5, PSK, aECDH, EDH-DSS-DES-CBC3-SHA, EDH-RSA-DES-CDC3-SHA, KRB5-DE5,
CBC3-SHA smtpd_tls_dh512_param_file = /etc/ssl/dh512_param.pem
smtpd_tls_dh1024_param_file = /etc/ssl/dh2048_param.pem
tls_random_source = dev:/dev/urandom
smtpd_tls_loglevel = 1
# Opportunistic TLS: announce STARTTLS support to remote SMTP clients, but do
# not require that clients use TLS encryption. smtpd_tls_security_level = may
# Produce Received: message headers that include information about the
# protocol and cipher used, as well as the remote SMTP client CommonName and
# client certificate issuer CommonName.
# This is disabled by default, as the information may be modified in transit
# through other mail servers. Only information that was recorded by the final
# destination can be trusted.
#smtpd_tls_received_header = yes
# Opportunistic TLS, used when Postfix sends email to remote SMTP server.
# Use TLS if this is supported by the remote SMTP server, otherwise use
# plaintext.
# References:
# - http://www.postfix.org/TLS_README.html#client_tls_may
# - http://www.postfix.org/postconf.5.html#smtp_tls_security_level smtp_tls_security_level = may
# Use the same CA file as smtpd. smtp_tls_CAfile = $smtpd_tls_CAfile smtp_tls_note_starttls_offer = yes
# Enable long, non-repeating, queue IDs (queue file names).
# The benefit of non-repeating names is simpler logfile analysis and easier
# queue migration (there is no need to run "postsuper" to change queue file
# names that don't match their message file inode number).
#enable_long_queue_ids = yes
# Reject unlisted sender and recipient smtpd_reject_unlisted_recipient = yes smtpd_reject_unlisted_sender = yes
# Header and body checks with PCRE table header_checks = pcre:/etc/postfix/header_checks body_checks =
pcre:/etc/postfix/body_checks.pcre
# A mechanism to transform commands from remote SMTP clients.
# This is a last-resort tool to work around client commands that break
# interoperability with the Postfix SMTP server. Other uses involve fault
# injection to test Postfix's handling of invalid commands.
# Requires Postfix-2.7+.
#smtpd_command_filter = pcre:/etc/postfix/command_filter.pcre
# HELO restriction smtpd_helo_required = yes smtpd_helo_restrictions =
permit_mynetworks
permit_sasl_authenticated
check_helo_access pcre:/etc/postfix/helo_access.pcre
reject_non_fqdn_helo_hostname
reject_unknown_helo_hostname
# Sender restrictions smtpd_sender_restrictions =
reject_unknown_sender_domain
reject_non_fqdn_sender
reject_unlisted_sender
permit_mynetworks
permit_sasl_authenticated
check_sender_access pcre:/etc/postfix/sender_access.pcre
# Recipient restrictions smtpd_recipient_restrictions =
reject_unknown_recipient_domain
reject_non_fqdn_recipient
reject_unlisted_recipient
check_policy_service inet:127.0.0.1:7777
permit_mynetworks
permit_sasl_authenticated
reject_unauth_destination
# END-OF-MESSAGE restrictions smtpd_end_of_data_restrictions =
check_policy_service inet:127.0.0.1:7777
# Data restrictions smtpd_data_restrictions = reject_unauth_pipelining
proxy_read_maps = $canonical_maps $lmtp_generic_maps
$local_recipient_maps $mydestination $mynetworks $recipient_bcc_maps
$recipient_canonical_maps $relay_domains $relay_recipient_maps
$relocated_maps $sender_bcc_maps $sender_canonical_maps
$smtp_generic_maps $smtpd_sender_login_maps $transport_maps
$virtual_alias_domains $virtual_alias_maps $virtual_mailbox_domains
$virtual_mailbox_maps $smtpd_sender_restrictions
$sender_dependent_relayhost_maps
# Avoid duplicate recipient messages. Default is 'yes'. enable_original_recipient = no
# Virtual support. virtual_minimum_uid = 2000 virtual_uid_maps = static:2000 virtual_gid_maps = static:2000 virtual_mailbox_base =
/var/vmail
# Do not set virtual_alias_domains. virtual_alias_domains =
#
# Enable SASL authentication on port 25 and force TLS-encrypted SASL authentication.
# WARNING: NOT RECOMMENDED to enable smtp auth on port 25, all end users should
# be forced to submit email through port 587 instead.
#
#smtpd_sasl_auth_enable = yes
#smtpd_sasl_security_options = noanonymous
#smtpd_tls_auth_only = yes
# hostname myhostname = mail.example.com myorigin = mail.example.com mydomain = mail.example.com
# trusted SMTP clients which are allowed to relay mail through Postfix.
#
# Note: additional IP addresses/networks listed in mynetworks should be listed
# in iRedAPD setting 'MYNETWORKS' (in /opt/iredapd/settings.py) too.
# for example:
#
# MYNETWORKS = ['xx.xx.xx.xx', 'xx.xx.xx.0/24', ...]
# mynetworks = 127.0.0.1 [::1]
# Accepted local emails mydestination = $myhostname, localhost, localhost.localdomain
alias_maps = hash:/etc/postfix/aliases alias_database =
hash:/etc/postfix/aliases
# Default message_size_limit. message_size_limit = 15728640
# The set of characters that can separate a user name from its extension
# (example: user+foo), or a .forward file name from its extension (example:
# .forward+foo).
# Postfix 2.11 and later supports multiple characters. recipient_delimiter = +
# The time after which the sender receives a copy of the message headers of
# mail that is still queued. Default setting is disabled (0h) by Postfix.
#delay_warning_time = 1h compatibility_level = 2
#
# Lookup virtual mail accounts
# transport_maps =
proxy:mysql:/etc/postfix/mysql/transport_maps_user.cf
proxy:mysql:/etc/postfix/mysql/transport_maps_domain.cf
sender_dependent_relayhost_maps =
proxy:mysql:/etc/postfix/mysql/sender_dependent_relayhost_maps.cf
# Lookup table with the SASL login names that own the sender (MAIL FROM) addresses. smtpd_sender_login_maps =
proxy:mysql:/etc/postfix/mysql/sender_login_maps.cf
virtual_mailbox_domains =
proxy:mysql:/etc/postfix/mysql/virtual_mailbox_domains.cf
relay_domains =
$mydestination
proxy:mysql:/etc/postfix/mysql/relay_domains.cf
virtual_mailbox_maps =
proxy:mysql:/etc/postfix/mysql/virtual_mailbox_maps.cf
virtual_alias_maps =
proxy:mysql:/etc/postfix/mysql/virtual_alias_maps.cf
proxy:mysql:/etc/postfix/mysql/domain_alias_maps.cf
proxy:mysql:/etc/postfix/mysql/catchall_maps.cf
proxy:mysql:/etc/postfix/mysql/domain_alias_catchall_maps.cf
sender_bcc_maps =
proxy:mysql:/etc/postfix/mysql/sender_bcc_maps_user.cf
proxy:mysql:/etc/postfix/mysql/sender_bcc_maps_domain.cf
recipient_bcc_maps =
proxy:mysql:/etc/postfix/mysql/recipient_bcc_maps_user.cf
proxy:mysql:/etc/postfix/mysql/recipient_bcc_maps_domain.cf
#
# Postscreen
# postscreen_greet_action = enforce postscreen_blacklist_action = enforce postscreen_dnsbl_action = enforce postscreen_dnsbl_threshold =
2 postscreen_dnsbl_sites =
zen.spamhaus.org=127.0.0.[2..11]*3
b.barracudacentral.org=127.0.0.[2..11]*2
postscreen_dnsbl_reply_map =
texthash:/etc/postfix/postscreen_dnsbl_reply postscreen_access_list =
permit_mynetworks cidr:/etc/postfix/postscreen_access.cidr
# Require Postfix-2.11+ postscreen_dnsbl_whitelist_threshold = -2
#
# Dovecot SASL support.
# smtpd_sasl_type = dovecot smtpd_sasl_path = private/dovecot-auth virtual_transport = dovecot dovecot_destination_recipient_limit = 1
#
# Amavisd + SpamAssassin + ClamAV
# content_filter = smtp-amavis:[127.0.0.1]:10024
# Concurrency per recipient limit. smtp-amavis_destination_recipient_limit = 1
/etc/dovecot/dovecot.conf
# More details about Dovecot settings: # -
http://wiki2.dovecot.org/ # - http://wiki2.dovecot.org/Variables
# Listen addresses. # - '*' means all available IPv4 addresses. #
- '[::]' means all available IPv6 addresses. # Listen on all available addresses by default listen = * [::]
#base_dir = /var/run/dovecot mail_plugins = quota mailbox_alias acl
mail_log notify
# Enabled mail protocols. protocols = pop3 imap sieve lmtp
# User/group who owns the message files: mail_uid = 2000 mail_gid =
2000
# Assign uid to virtual users. first_valid_uid = 2000 last_valid_uid
= 2000
# Logging. Reference: http://wiki2.dovecot.org/Logging # # Use
syslog syslog_facility = local5 # Log file path if we use internal
log system #log_path = /var/log/dovecot/dovecot.log
# Debug #mail_debug = yes #auth_verbose = yes #auth_debug = yes
#auth_debug_passwords = yes # Possible values: no, plain, sha1.
#auth_verbose_passwords = no
# SSL: Global settings. # Refer to wiki site for per protocol, ip,
server name SSL settings: #
http://wiki2.dovecot.org/SSL/DovecotConfiguration ssl_protocols =
!SSLv2 !SSLv3 ssl = required verbose_ssl = no #ssl_ca =
# Fix 'The Logjam Attack' ssl_cipher_list =
ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:ECDH+3DES:DH+3DES:RSA+AESGCM:RSA+AES:RSA+3DES:!aNULL:!MD5
# Dovecot 2.2.6 or greater: # Specify the wanted DH parameters
length ssl_dh_parameters_length = 2048 ssl_prefer_server_ciphers = yes
# With disable_plaintext_auth=yes AND ssl=required, STARTTLS is
mandatory. # Set disable_plaintext_auth=no AND ssl=yes to allow plain
password transmitted # insecurely. disable_plaintext_auth = yes
# Allow plain text password per IP address/net #remote
192.168.0.0/24 { # disable_plaintext_auth = no #}
# Mail location and mailbox format. mail_location =
maildir:%Lh/Maildir/:INDEX=%Lh/Maildir/
# Authentication related settings. # Append this domain name if
client gives empty realm. #auth_default_realm = example.com
# Authentication mechanisms. auth_mechanisms = PLAIN LOGIN
# Limits the number of users that can be logging in at the same time.
# Default is 100. This can be overridden by process_limit = in #
service [protocol] block. # e.g. # protocol imap-login { #
... # process_limit = 500 # }
#default_process_limit = 100
service auth {
unix_listener /var/spool/postfix/private/dovecot-auth {
user = postfix
group = postfix
mode = 0666
}
unix_listener auth-master {
user = vmail
group = vmail
mode = 0666
}
unix_listener auth-userdb {
user = vmail
group = vmail
mode = 0660
} }
# LMTP server (Local Mail Transfer Protocol). # Reference:
http://wiki2.dovecot.org/LMTP service lmtp {
user = vmail
\# 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
\# Logging.
\# Require 'log_path =' in 'protocol lmtp {}' block.
executable = lmtp -L
\# Listening on socket file and TCP
unix_listener /var/spool/postfix/private/dovecot-lmtp {
user = postfix
group = postfix
mode = 0600
}
inet_listener lmtp {
\# Listen on localhost (ipv4)
address = 127.0.0.1
port = 24
} }
# Virtual mail accounts. userdb {
args = /etc/dovecot/dovecot-mysql.conf
driver = sql } passdb {
args = /etc/dovecot/dovecot-mysql.conf
driver = sql }
auth_master_user_separator = * passdb {
driver = passwd-file
args = /etc/dovecot/dovecot-master-users
master = yes }
plugin {
# Quota configuration.
# Reference: http://wiki2.dovecot.org/Quota/Configuration
quota = dict:user::proxy::quotadict
quota_rule = *:storage=1G
#quota_rule2 = *:messages=0
#quota_rule3 = Trash:storage=1G
#quota_rule4 = Junk:ignore
\# Quota warning.
\#
\# If user suddenly receives a huge mail and the quota jumps from
\# 85% to 95%, only the 95% script is executed.
\#
\# Only the command for the first exceeded limit is executed, so configure
\# the highest limit first.
quota_warning = storage=100%% quota-warning 100 %u
quota_warning2 = storage=95%% quota-warning 95 %u
quota_warning3 = storage=90%% quota-warning 90 %u
quota_warning4 = storage=85%% quota-warning 85 %u
\# allow user to become max 10% (or 50 MB) over quota
quota_grace = 10%%
\#quota_grace = 50 M
\# Custom Quota Exceeded Message.
\# You can specify the message directly or read the message from a file.
\#quota_exceeded_message = Quota exceeded, please try again later.
\#quota_exceeded_message = </path/to/quota_exceeded_message.txt
\# Plugin: expire.
\#expire = Trash 7 Trash/* 7 Junk 30
\#expire_dict = proxy::expire
\# ACL and share folder
acl = vfile
acl_shared_dict = proxy::acl
\# By default Dovecot doesn't allow using the IMAP "anyone" or
\# "authenticated" identifier, because it would be an easy way to spam
\# other users in the system. If you wish to allow it,
\#acl_anyone = allow
\# Pigeonhole managesieve service.
\# Reference: http://wiki2.dovecot.org/Pigeonhole/Sieve/Configuration
\# Per-user sieve settings.
sieve_dir = %Lh/sieve
sieve = %Lh/sieve/dovecot.sieve
\# Global sieve settings.
sieve_global_dir = /var/vmail/sieve
\# Note: if user has personal sieve script, global sieve rules defined in
\# sieve_default will be ignored. Please use sieve_before or
\# sieve_after instead.
\#sieve_default =
sieve_before = /var/vmail/sieve/dovecot.sieve
\#sieve_after =
\# The maximum number of redirect actions that can be performed during a
\# single script execution.
\# The meaning of 0 differs based on your version. For pigeonhole-0.3.0 and
\# beyond this means that redirect is prohibited. For older versions,
\# however, this means that the number of redirects is unlimited.
sieve_max_redirects = 30
\# Reference: http://wiki2.dovecot.org/Plugins/MailboxAlias
mailbox_alias_old = Sent
mailbox_alias_new = Sent Messages
mailbox_alias_old2 = Sent
mailbox_alias_new2 = Sent Items
\# Events to log. `autoexpunge` is included in `expunge`
\# Defined in https://github.com/dovecot/core/blob/master/src/plugins/mail-log/mail-log-plugin.c
mail_log_events = delete undelete expunge mailbox_delete mailbox_rename
mail_log_fields = uid box msgid size from subject }
service quota-warning {
executable = script /usr/local/bin/dovecot-quota-warning.sh
unix_listener quota-warning {
user = vmail
group = vmail
mode = 0660
} }
service dict {
unix_listener dict {
mode = 0660
user = vmail
group = vmail
} }
dict {
#expire = db:/var/lib/dovecot/expire/expire.db
quotadict = mysql:/etc/dovecot/dovecot-used-quota.conf
acl = mysql:/etc/dovecot/dovecot-share-folder.conf }
protocol lda {
# Reference: http://wiki2.dovecot.org/LDA
mail_plugins = $mail_plugins sieve
lda_mailbox_autocreate = yes
lda_mailbox_autosubscribe = yes
postmaster_address = root
\# Log file path if we use internal log system
\#log_path = /var/log/dovecot/sieve.log }
protocol lmtp {
# Log file path if we use internal log system
#log_path = /var/log/dovecot/lmtp.log
\# Plugins
mail_plugins = quota sieve
postmaster_address = postmaster
\# Address extension delivery
lmtp_save_to_detail_mailbox = yes
recipient_delimiter = + }
protocol imap {
mail_plugins = $mail_plugins imap_quota imap_acl
imap_client_workarounds = tb-extra-mailbox-sep
\# Maximum number of IMAP connections allowed for a user from each IP address.
\# NOTE: The username is compared case-sensitively.
\# Default is 10.
\# Increase it to avoid issue like below:
\# "Maximum number of concurrent IMAP connections exceeded"
mail_max_userip_connections = 30 }
protocol pop3 {
mail_plugins = $mail_plugins
pop3_client_workarounds = outlook-no-nuls oe-ns-eoh
pop3_uidl_format = %08Xu%08Xv
\# Maximum number of IMAP connections allowed for a user from each IP address.
\# NOTE: The username is compared case-sensitively.
\# Default is 10.
mail_max_userip_connections = 30
\# POP3 logout format string:
\# %i - total number of bytes read from client
\# %o - total number of bytes sent to client
\# %t - number of TOP commands
\# %p - number of bytes sent to client as a result of TOP command
\# %r - number of RETR commands
\# %b - number of bytes sent to client as a result of RETR command
\# %d - number of deleted messages
\# %m - number of messages (before deletion)
\# %s - mailbox size in bytes (before deletion)
\# Default format doesn't have 'in=%i, out=%o'.
\#pop3_logout_format = top=%t/%p, retr=%r/%b, del=%d/%m, size=%s, in=%i, out=%o }
# Login processes. Refer to Dovecot wiki for more details: #
http://wiki2.dovecot.org/LoginProcess service imap-login {
#inet_listener imap {
# port = 143
#}
#inet_listener imaps {
# port = 993
# ssl = yes
#}
service_count = 1
\# To avoid startup latency for new client connections, set process_min_avail
\# to higher than zero. That many idling processes are always kept around
\# waiting for new connections.
\#process_min_avail = 0
\# number of simultaneous IMAP connections
process_limit = 500
\# vsz_limit should be fine at its default 64MB value
\#vsz_limit = 64M }
service pop3-login {
#inet_listener pop3 {
# port = 110
#}
#inet_listener pop3s {
# port = 995
# ssl = yes
#}
service_count = 1
\# number of simultaneous POP3 connections
\#process_limit = 500 }
service managesieve-login {
inet_listener sieve {
# Listen on localhost (ipv4)
address = 127.0.0.1
port = 4190
} }
namespace {
type = private
separator = /
prefix =
inbox = yes
\# Refer to document for more details about alias mailbox:
\# http://wiki2.dovecot.org/MailboxSettings
\#
\# Sent
mailbox Sent {
auto = subscribe
special_use = \Sent
}
mailbox "Sent Messages" {
auto = no
special_use = \Sent
}
mailbox "Sent Items" {
auto = no
special_use = \Sent
}
mailbox Drafts {
auto = subscribe
special_use = \Drafts
}
\# Trash
mailbox Trash {
auto = subscribe
special_use = \Trash
}
mailbox "Deleted Messages" {
auto = no
special_use = \Trash
}
\# Junk
mailbox Junk {
auto = subscribe
special_use = \Junk
}
mailbox Spam {
auto = no
special_use = \Junk
}
mailbox "Junk E-mail" {
auto = no
special_use = \Junk
}
\# Archive
mailbox Archive {
auto = no
special_use = \Archive
}
mailbox Archives {
auto = no
special_use = \Archive
} }
namespace {
type = shared
separator = /
prefix = Shared/%%u/
location = maildir:%%Lh/Maildir/:INDEX=%%Lh/Maildir/Shared/%%Ld/%%Ln
\# this namespace should handle its own subscriptions or not.
subscriptions = yes
list = children }
# Public mailboxes. # Refer to Dovecot wiki page for more details:
# http://wiki2.dovecot.org/SharedMailboxes/Public #namespace { #
type = public # separator = / # prefix = Public/ #
location =
maildir:/var/vmail/public:CONTROL=%Lh/Maildir/public:INDEXPVT=%Lh/Maildir/public
# # # Allow users to subscribe to the public folders. #
subscriptions = yes #}

Answer 1

It looks like the ClamAV hangs and times out after 5 minutes. Would that explain things? I find it hard to read your configurations.