From: Victor Duchovni (no email)
Date: Wed Dec 01 2004 - 10:01:15 EST
On Wed, Dec 01, 2004 at 03:53:27PM +0100, Ralph Utbult wrote:
> This is interesting! It seems that when mail is bigger than 10 kB, OE takes a very long time to send it.
> I see a lot of 354 End data with <CR><LF> in the log file.
>
Do you have verbose logging on? How verbose? Why? Turn the verbose logging
off, and make sure that syslog logs mail messages without fsync() after
every write (-/var/log/maillog).
If large messages are delayed, either your network is broken, say PMTU by
a firewall you don't know is there, or just a high packet loss rate for
large packets, one possibility is a duplex mismatch between the switch
and a host network card. This would cause the switch to stop sending
data when the Postfix server returns an ACK that overlaps a data segment
(Postfix full-duplex, switch half-duplex).
-- Viktor. Disclaimer: off-list followups get on-list replies or get ignored. Please do not ignore the "Reply-To" header. To unsubscribe from the postfix-users list, visit http://www.postfix.org/lists.html or click the link below: <mailto:?body=unsubscribe%20postfix-users>
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