Hi

I recently moved to Debian Wheezy and installed dovecot from apt-get. root@mail:~# dpkg -l | grep dovecot ii dovecot-common 1:2.1.7-7 all Transitional package for dovecot ii dovecot-core 1:2.1.7-7 amd64 secure mail server that supports mbox, maildir, dbox and mdbox mailboxes ii dovecot-gssapi 1:2.1.7-7 amd64 GSSAPI authentication support for Dovecot ii dovecot-imapd 1:2.1.7-7 amd64 secure IMAP server that supports mbox, maildir, dbox and mdbox mailboxes ii dovecot-ldap 1:2.1.7-7 amd64 LDAP support for Dovecot ii dovecot-managesieved 1:2.1.7-7 amd64 secure ManageSieve server for Dovecot ii dovecot-mysql 1:2.1.7-7 amd64 MySQL support for Dovecot ii dovecot-pgsql 1:2.1.7-7 amd64 PostgreSQL support for Dovecot ii dovecot-pop3d 1:2.1.7-7 amd64 secure POP3 server that supports mbox, maildir, dbox and mdbox mailboxes ii dovecot-sieve 1:2.1.7-7 amd64 sieve filters support for Dovecot ii dovecot-sqlite 1:2.1.7-7 amd64 SQLite support for Dovecot

Having previously been on 1.2 on Debian Squeeze the upgrade went flawlessly (and automatically, as I'd already placed the 1.2 dovecot.conf file before installing 2.1.7). And I've been very happy.

However, yesterday the server just just shutdown. /var/log/mail.log.1:42890:Jun 30 17:27:04 mail dovecot: imap: Server shutting down. in=14 out=648 /var/log/mail.log.1:42891:Jun 30 17:27:04 mail dovecot: imap: Server shutting down. in=14 out=648 /var/log/mail.log.1:42893:Jun 30 17:27:04 mail dovecot: imap: Server shutting down. in=14 out=648 /var/log/mail.log.1:42895:Jun 30 17:27:34 mail dovecot: imap: Server shutting down. in=739 out=2081 /var/log/mail.log.1:42896:Jun 30 17:27:34 mail dovecot: imap: Server shutting down. in=1764 out=4027

There's no error|panic|warning|fatal messages in any of the logs.

root@mail:~# grep -in dovecot /var/log/syslog | grep '(fatal|error|warning|panic)' root@mail:~# grep -in dovecot /var/log/messages | grep '(fatal|error|warning|panic)' root@mail:~# grep -in dovecot /var/log/daemon.log | grep '(fatal|error|warning|panic)' root@mail:~# grep -inr dovecot /var/log/mail* | grep '(fatal|error|warning|panic)'

Although everything should log to mail.log if I set up rsyslog properly.

The timestamp is not correlated to any of my cron jobs.

How can I find out what caused this? Of course with Dovecot shut down Postfix refused to send mail as there was no auth service available.

Simon