I recently upgaded from dovecot 1.2.11 to 2.0.13. I used this command on my dovecont.conf after the upgrade and then moved the new file into place after removing some plugins. $ sudo doveconf -n -c dovecot-1.conf > dovecot-2.conf

After 24+ hours with no issues I was getting pop3 login failures. ... /path/to/log/dovecot.log:master: Error: service(pop3): read(status) failed: Interrupted system call ... /path/to/log/dovecot.log:Jun 17 05:25:47 pop3-login: Error: master(pop3): Auth request timed out (received 0/12 bytes) /path/to/log/dovecot.log:Jun 17 05:25:47 pop3-login: Info: Internal login failure (pid=1796 id=1) (auth failed, 1 attempts): user=<rriveter@domainname.com>, method=APOP, rip=123.4.5.6, lip=123.7.8.9 /path/to/log/dovecot.log:Jun 17 05:25:47 pop3-login: Error: master(pop3): Auth request timed out (received 0/12 bytes) /path/to/log/dovecot.log:Jun 17 05:25:47 pop3-login: Info: Internal login failure (pid=1797 id=1) (auth failed, 1 attempts): user=<jdoe@domainname.com>, method=APOP, rip=123.4.5.6, lip=123.7.8.9 /path/to/log/dovecot.log:Jun 17 05:25:47 pop3-login: Error: master(pop3): Auth request timed out (received 0/12 bytes) /path/to/log/dovecot.log:Jun 17 05:25:47 pop3-login: Info: Internal login failure (pid=1798 id=1) (auth failed, 1 attempts): user=<gkhan@domainname.com>, method=APOP, rip=123.4.5.6, lip=123.7.8.9 /path/to/log/dovecot.log:Jun 17 05:25:47 pop3-login: Error: master(pop3): Auth request timed out (received 0/12 bytes) ... /path/to/log/dovecot.log:Jun 17 05:40:34 pop3-login: Error: net_connect_unix(pop3) failed: Operation timed out ...

Bouncing dovecot has resolved the login issues for the present.

Reading from the wiki I see my post-login scripts will need changing. http://wiki2.dovecot.org/Upgrading/2.0

Is there anything else obviously/dangerously wrong with the following doveconf output? I'm am still in the process of moving directives out of dovecot.conf into the new conf.d files.

$ doveconf -n # 2.0.13: /path/to/etc/dovecot/dovecot.conf # OS: Darwin 9.8.0 Power Macintosh hfs auth_mechanisms = plain login cram-md5 ntlm apop default_internal_user = _dovecot default_login_user = _dovenull disable_plaintext_auth = no log_path = /path/to/log/dovecot.log mail_location = dbox:/path/to/mail/%d/%n/dbox mail_max_userip_connections = 30 managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date passdb { args = /path/to/etc/dovecot/dovecot_mysql.conf driver = sql } plugin { autocreate = Trash autocreate2 = Spam autosubscribe = Trash autosubscribe2 = Spam } protocols = imap pop3 service auth { unix_listener /path/to/var/spool/postfix/private/auth { group = _postfix mode = 0660 user = _postfix } unix_listener auth-master { mode = 0600 user = _vmail } unix_listener auth-userdb { group = _vmail user = _vmail } } service imap { executable = /path/to/dovecot/bin/log_imap_login.sh } service pop3 { executable = /path/to/dovecot/bin/log_pop3_login.sh } ssl_cert = </path/to/etc/ssl/certs/dovecot.pem ssl_key = </path/to/etc/ssl/private/dovecot.pem userdb { driver = prefetch } userdb { args = /path/to/etc/dovecot/dovecot_mysql.conf driver = sql }

Thanks, Bradley Giesbrecht