Hi,

Thanks. I used monit, and will code something up of that kind - but I was curious as to whether dovecot had something built in; external monitoring is a somewhat blunter tool, as you don't get to know exactly why there was a problem unless you also parse the logs.

Tricky to investigate this kind of issue - it has only happened once, and I had a few hundred people trying to log in, so no time to start debugging! But if it recurs I'll be back to ask for guidance...

Many thanks, David

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On 01/09/12 12:15, Noel Butler wrote:

Seen similar, we use mon¹ for network monitoring, our mon pop3 script is modified to not only connect, but login, if it cant the trigger becomes active and if fails again at next check, it alerts engineers by sms.

Though, I would investigate the core issue, Timo "apparently" fixed that hung session stuff in 2.0, it was common in 0.x and 1.x series.

Cheers

1: ( http://sourceforge.net/projects/mon/files/mon/ http://sourceforge.net/projects/mon/files/mon/ )