Emmett Culley:
> For some months I've been noticing on multiple servers that mail
> from a cron job defined in the root's crontab takes 24 hours to
> get to it's destination. It finally bugged me enough to have me
> take a look for the reason. This is what I found in the maillog
> for each day:
>
> Nov 29 03:15:58 den1 postfix/pickup[8219]: B0771588D1B: uid=0 from=<root>
> Nov 29 03:15:58 den1 postfix/cleanup[7689]: B0771588D1B:
> message-id=<20091129101558.b0771588...@den1.thisserver.net>
> Nov 29 03:15:58 den1 postfix/qmgr[3361]: B0771588D1B:
> from=<r...@den1.thisserver.net>, size=819, nrcpt=1 (queue active)
> Nov 29 03:15:59 den1 postfix/smtp[7691]: B0771588D1B:
> to=<webmas...@example.com>, relay=example.com[123.45.67.89]:25, delay=86457,
> delays=86457/0/0.36/0.18, dsn=2.0.0, status=sent (250 2.0.0 Ok: queued as
> 3586C400032)
This message is queued on a DIFFERENT mail system
example.com[123.45.67.89]:25, meaning it was sent via the SMTP port
(port 25) to a mail system on a named example.com with IP address
123.45.67.89.
Is the local machine running MacOS? Apple has made some changes
such that Postfix is not running all of the time. This is a change
that is specific to APPLE, and may explain why mail not picked
up as soon as it is enqueued.
Is the queue on a file server, and are the client and file server
clocks out of sync?
Looking at the Received: in your message as delivered, the clocks
on those systems are all out of sync.
Wietse
