Hello everybody,

I am running dovecot 2.1.7 on Debian Wheezy on two servers with replication set up, MTA is postfix. The idea is to have a redundant mail system so that when one server fails, users can continue using the other server (failover of POP/IMAP through DNS redirection). Servers are called srv06 and srv07:

Below is the dovecot config, both servers have identical config, only the replica srv0x address is different. I read to put this line into 10-mail.conf and I did: mail_plugins = $mail_plugins notify replication

My Problem: When E-Mail arrives on one server, it is only available on the other server many hours later. Same behaviour in both directions. This means I see different mailboxes via IMAP depending on which server I connect to - in theory I want the client not to be able to tell which server it is connected to.

dovecot -n: # 2.1.7: /etc/dovecot/dovecot.conf # OS: Linux 3.2.0-4-amd64 x86_64 Debian 7.1 ext4 auth_mechanisms = plain login cram-md5 disable_plaintext_auth = no log_timestamp = "%Y-%m-%d %H:%M:%S " mail_location = maildir:/home/%d/%n/Maildir mail_privileged_group = mail passdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } plugin { mail_replica = remote:vmail@srv07.xxx quota = maildir:User quota quota_rule = *:storage=1GB replication_full_sync_interval = 1 hours } protocols = imap pop3 service aggregator { fifo_listener replication-notify-fifo { mode = 0600 user = vmail } unix_listener replication-notify { mode = 0600 user = vmail } } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } user = root } service config { unix_listener config { user = vmail } } service doveadm { user = vmail } service replicator { process_min_avail = 1 } ssl_cert = </etc/ssl/certs/dovecot.pem ssl_key = </etc/ssl/private/dovecot.pem userdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } protocol imap { mail_plugins = quota imap_quota } protocol pop3 { mail_plugins = quota pop3_uidl_format = %08Xu%08Xv } protocol lda { mail_plugins = quota postmaster_address = mk@xxx }

output of cat /var/log/mail.log | grep dsync: Oct 7 05:31:45 srv06 dovecot: dsync-local(sysop@xxxxx): Error: remote: dsync-remote(sysop@xxxxx): Warning: Maildir /home/xxxxx/sysop/Maildir: Expunged message reappeared, giving a new UID (old uid=1522, file=1381075321.V902I19a2a66M626453.srv07.xxxxx:2,) Oct 7 05:31:45 srv06 dovecot: dsync-local(sysop@xxxxx): Error: remote: dsync-remote(sysop@xxxxx): Warning: Maildir /home/xxxxx/sysop/Maildir: Expunged message reappeared, giving a new UID (old uid=1523, file=1381075381.V902I19a2bb2M737865.srv07.xxxxx:2,) Oct 7 05:31:45 srv06 dovecot: dsync-local(sysop@xxxxx): Error: remote: dsync-remote(sysop@xxxxx): Warning: Maildir /home/xxxxx/sysop/Maildir: Expunged message reappeared, giving a new UID (old uid=1524, file=1381075441.V902I19a3185M959529.srv07.xxxxx:2,) Oct 7 05:31:45 srv06 dovecot: dsync-local(sysop@xxxxx): Error: remote: dsync-remote(sysop@xxxxx): Warning: Maildir /home/xxxxx/sysop/Maildir: Expunged message reappeared, giving a new UID (old uid=1525, file=1381075501.V902I19a3187M989935.srv07.xxxxx:2,) Oct 7 05:31:45 srv06 dovecot: dsync-local(sysop@xxxxx): Error: remote: dsync-remote(sysop@xxxxx): Warning: Maildir /home/xxxxx/sysop/Maildir: Expunged message reappeared, giving a new UID (old uid=1526, file=1381075561.V902I19a3188M971187.srv07.xxxxx:2,) Oct 7 05:31:45 srv06 dovecot: dsync-local(sysop@xxxxx): Error: remote: dsync-remote(sysop@xxxxx): Warning: Maildir /home/xxxxx/sysop/Maildir: Expunged message reappeared, giving a new UID (old uid=1527, file=1381075622.V902I19a3189M60093.srv07.xxxxx:2,) Oct 7 05:31:45 srv06 dovecot: dsync-local(sysop@xxxxx): Error: remote: dsync-remote(sysop@xxxxx): Warning: Maildir /home/xxxxx/sysop/Maildir: Expunged message reappeared, giving a new UID (old uid=1528, file=1381075682.V902I19a318aM231725.srv07.xxxxx:2,) Oct 7 05:31:45 srv06 dovecot: dsync-local(sysop@xxxxx): Error: remote: dsync-remote(sysop@xxxxx): Warning: Maildir /home/xxxxx/sysop/Maildir: Expunged message reappeared, giving a new UID (old uid=1529, file=1381075741.V902I19a318bM353115.srv07.xxxxx:2,) Oct 7 05:31:46 srv06 dovecot: dsync-local(sysop@xxxxx): Error: remote: dsync-remote(sysop@xxxxx): Warning: Maildir /home/xxxxx/sysop/Maildir: Expunged message reappeared, giving a new UID (old uid=1530, file=1381075801.V902I19a318cM609633.srv07.xxxxx:2,) Oct 7 05:31:46 srv06 dovecot: dsync-local(sysop@xxxxx): Error: remote: dsync-remote(sysop@xxxxx): Warning: Maildir /home/xxxxx/sysop/Maildir: Expunged message reappeared, giving a new UID (old uid=1531, file=1381075861.V902I19a318dM392514.srv07.xxxxx:2,) Oct 7 05:31:46 srv06 dovecot: dsync-local(sysop@xxxxx): Error: remote: dsync-remote(sysop@xxxxx): Warning: Maildir /home/xxxxx/sysop/Maildir: Expunged message reappeared, giving a new UID (old uid=1532, file=1381075921.V902I19a318eM521040.srv07.xxxxx:2,) Oct 7 05:31:46 srv06 dovecot: dsync-local(sysop@xxxxx): Error: remote: dsync-remote(sysop@xxxxx): Warning: Maildir /home/xxxxx/sysop/Maildir: Expunged message reappeared, giving a new UID (old uid=1533, file=1381075981.V902I19a318fM611775.srv07.xxxxx:2,) Oct 7 05:31:46 srv06 dovecot: dsync-local(sysop@xxxxx): Error: remote: dsync-remote(sysop@xxxxx): Warning: Maildir /home/xxxxx/sysop/Maildir: Expunged message reappeared, giving a new UID (old uid=1534, file=1381076041.V902I19a3190M734263.srv07.xxxxx:2,) Oct 7 05:31:46 srv06 dovecot: dsync-local(sysop@xxxxx): Error: remote: dsync-remote(sysop@xxxxx): Warning: Maildir /home/xxxxx/sysop/Maildir: Expunged message reappeared, giving a new UID (old uid=1535, file=1381076101.V902I19a3191M850303.srv07.xxxxx:2,) Oct 7 05:31:46 srv06 dovecot: dsync-local(sysop@xxxxx): Error: remote: dsync-remote(sysop@xxxxx): Warning: Maildir /home/xxxxx/sysop/Maildir: Expunged message reappeared, giving a new UID (old uid=1536, file=1381076881.V902I19a3192M362845.srv07.xxxxx:2,S) Oct 7 05:31:46 srv06 dovecot: dsync-local(sysop@xxxxx): Error: remote: dsync-remote(sysop@xxxxx): Warning: Maildir /home/xxxxx/sysop/Maildir: Expunged message reappeared, giving a new UID (old uid=1537, file=1380998413.V902I19a315bM206668.srv07.xxxxx:2,e) Oct 7 05:31:46 srv06 dovecot: dsync-local(sysop@xxxxx): Error: remote: dsync-remote(sysop@xxxxx): Warning: Maildir /home/xxxxx/sysop/Maildir: Expunged message reappeared, giving a new UID (old uid=1538, file=1380999043.V902I19a315cM413578.srv07.xxxxx:2,e) Oct 7 05:31:46 srv06 dovecot: dsync-local(sysop@xxxxx): Error: remote: dsync-remote(sysop@xxxxx): Warning: Maildir /home/xxxxx/sysop/Maildir: Expunged message reappeared, giving a new UID (old uid=1539, file=1380574384.V902I19a3146M616434.srv07.xxxxx:2,e) Oct 7 05:31:46 srv06 dovecot: dsync-local(sysop@xxxxx): Error: remote: dsync-remote(sysop@xxxxx): Warning: Maildir /home/xxxxx/sysop/Maildir: Expunged message reappeared, giving a new UID (old uid=1540, file=1381110251.V902I19a3186M993173.srv07.xxxxx) Oct 7 05:31:46 srv06 dovecot: dsync-local(sysop@xxxxx): Warning: Mailbox changes caused a desync. You may want to run dsync again.

However, I cannot understand what this log wants to tell me? Please advise. Thanks.

Lucas

-- Lucas Rothamel Eye Catching Webdesign info@eye-catching-webdesign.de - www.eye-catching-webdesign.de

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