Viktor Dukhovni:
> There's your problem. Your SMTP delivery agent is blocked waiting
> for something that never happens, until an interrupt after a 5 hour
> watchdog timer. This suggests a buggy operating system, perhaps
> a virtual machine that loses timer events, or some other O/S bug.
>
> Jul 13 03:15:02 l2-rly-01 relay085/smtp[11563]: fatal: watchdog timeout
> Jul 13 03:15:02 l2-rly-01 relay059/smtp[11564]: fatal: watchdog timeout
> Jul 13 03:15:02 l2-rly-01 relay017/smtp[11567]: fatal: watchdog timeout
> ...
> Jul 13 03:15:02 l2-rly-01 relay095/smtp[11647]: fatal: watchdog timeout
> Jul 13 03:15:02 l2-rly-01 relay099/smtp[11655]: fatal: watchdog timeout
> Jul 13 03:15:02 l2-rly-01 relay008/smtp[11654]: fatal: watchdog timeout
> Jul 13 03:15:02 l2-rly-01 postfix/qmgr[11562]: fatal: 202298015A3D0: timeout
> receiving delivery status from transport: relay085
I agree, your OS or VM (or both) is borked. The only Postfix change
that might avoid this is to drastically reduce process limits.
Wietse