Outlook 2013 not fetching new mail/synchronization issues

29 Jun 2015

      Hi all,
Dovecot 2.2.10 CentOS 6 64 bit.
We are having terrible synchronization issues with Outlook 2013 (all
updates) on Windows 7 SP1 and 8.1 hosts (all updates).
Scenario:

  Emails were sent since user closed Outlook

  Next day: start computer, open outlook

  No new email (even though email were sent overnight)

  half a day later Outlook fetches emails like nothing happened

Second issue: folders created or email send in Outlook 2013 does not
synchronize on IMAP, they remain only local ..
But I am mostly interested into finding a fix for the first synchronization
issue described in scenario. Second is also important
but I have a feeling its connected to the first.
Any help will be highly appreciated!
dovecot.conf
listen = *
#base_dir = /var/run/dovecot
# Enabled mail protocols.
#protocols = pop3 imap sieve
protocols = pop3 imap
# User/group who owns the message files:
mail_uid = 89
mail_gid = 89
# Assign uid to virtual users.
first_valid_uid = 89
last_valid_uid = 89
mail_max_userip_connections = 200
default_client_limit = 3000
namespace inbox {
separator = .
prefix = INBOX.
inbox = yes
# These mailboxes are widely used and could perhaps be created
automatically:
mailbox Drafts {
special_use = \Drafts

}
mailbox Junk {
special_use = \Junk

}
mailbox Trash {
special_use = \Trash

}
# For \Sent mailboxes there are two widely used names. We'll mark both of
# them as \Sent. User typically deletes one of them if duplicates are
created.
mailbox Sent {
special_use = \Sent

}
mailbox "Sent Messages" {
special_use = \Sent

}
}
# Logging. Reference: http://wiki2.dovecot.org/Logging
log_path = /var/log/dovecot.log
mail_debug = no
auth_verbose = no
auth_debug = no
auth_debug_passwords = no
auth_verbose_passwords = no
auth_worker_max_count = 2048
# SSL: Global settings.
# Refer to wiki site for per protocol, ip, server name SSL settings:
# http://wiki2.dovecot.org/SSL/DovecotConfiguration
ssl = yes
verbose_ssl = no
ssl_ca = </etc/ssl/savvy.cz-CA.pem
ssl_cert = </etc/ssl/savvy.cz.crt
ssl_key = </etc/ssl/savvy.cz.key
disable_plaintext_auth = no
# Mail location and mailbox format.
#mail_location = maildir:/%Lh/Maildir/:INDEX=/%Lh/Maildir/
mail_location = maildir:~/Maildir:INDEX=/home/dovecotindex/%Lh/Maildir/
# Authentication related settings.
# Append this domain name if client gives empty realm.
auth_default_realm =
# Authentication mechanisms.
auth_mechanisms = PLAIN LOGIN
service imap-login {
client_limit = 3024

process_limit = 2048

process_min_avail = 64

vsz_limit = 64 M

}
service auth {
client_limit = 3072

unix_listener auth-userdb {

}

inet_listener {

            port = 12345

}

}
service imap {
vsz_limit = 256M
# Max. number of IMAP processes (connections)
process_limit =  2048
#imap_idle_notify_interval = 2 mins
}
service pop3 {
# Max. number of POP3 processes (connections)
process_limit = 1024
}
# Virtual mail accounts.
userdb {
args = /etc/dovecot/dovecot-mysql.conf

driver = sql

}
passdb {
args = /etc/dovecot/dovecot-mysql.conf

driver = sql

}
plugin {
auth_socket_path = /var/run/dovecot/auth-master

# Plugin: autocreate. Create and subscribe to default IMAP folders.

autocreate = INBOX

autocreate2 = Sent

autocreate3 = Trash

autocreate4 = Drafts

autocreate5 = Junk

autosubscribe = INBOX

autosubscribe2 = Sent

autosubscribe3 = Trash

autosubscribe4 = Drafts

autosubscribe5 = Junk

# Plugin: expire.

expire = Trash 7 Trash/* 7 Junk 30

expire_dict = proxy::expire

# 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 = /home/vpopmail/sieve

sieve_global_path = /home/vpopmail/sieve/dovecot.sieve

#sieve_before =

#sieve_after =

}
service dict {
unix_listener dict {

#    mode = 0660

#    user = vmail

#    group = vmail

}

}
protocol lda {
# Reference: http://wiki2.dovecot.org/LDA

#mail_plugins = quota sieve autocreate

#auth_socket_path = /var/run/dovecot/auth-master

#log_path = /var/log/sieve.log

#lda_mailbox_autocreate = yes

#postmaster_address = root

}
protocol imap {
mail_max_userip_connections = 2048

imap_client_workarounds = tb-extra-mailbox-sep

#mail_plugins = quota imap_quota autocreate

#mail_plugins = autocreate

}
protocol pop3 {
#mail_plugins = quota

pop3_uidl_format = UID%u-%v

pop3_client_workarounds = outlook-no-nuls oe-ns-eoh

}
Regards,
Pacher Dragos

Dragos Pacher

Jerry

Robert Schetterer

Dragos Pacher

Jerry

Dragos Pacher

Jerry

Dragos Pacher

Jerry

Dragos Pacher

Robert Schetterer

Dragos Pacher

Jerry

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