Timeout when talking to slow remote SMTP server

[Quanah Gibson-Mount]

I'm having issues sending email to a public list because connecting to the 
MX for the list takes too long.  From the postfix log:


May  3 09:50:32 edge01-zcs postfix/qmgr[13714]: 54A1D1BD: 
from=qua...@zimbra.com, size=1764, nrcpt=1 (queue active)
May  3 09:50:53 edge01-zcs postfix/smtp[14285]: connect to 
megawatt.resistor.net[208.69.177.116]:25: Connection timed out
May  3 09:50:53 edge01-zcs postfix/smtp[14285]: 54A1D1BD: 
to=opendkim-us...@lists.opendkim.org, relay=none, delay=4106, 
delays=4085/0.08/21/0, dsn=4.4.1, status=deferred (connect to 
megawatt.resistor.net[208.69.177.116]:25: Connection timed out)


I checked the MX server via http://www.mxtoolbox.com/SuperTool.aspx and 
found it sees a significant response delay:


smtp:megawatt.resistor.net
220 mx.elandsys.com ESMTP Sendmail 8.14.5/8.14.5; Thu, 3 May 2012 09:45:12 
-0700 (PDT)

11.981 seconds - Not good! on Transaction Time

From the above logs, you can see postfix timed out within 21 seconds of me 

flushing the queue.

However, I have smtp_connect_timeout set to 60 seconds:

[zimbra@edge01-zcs ~]$ postconf smtp_connect_timeout
smtp_connect_timeout = 60s

Am I setting the wrong parameter?

Thanks,
Quanah


--

Quanah Gibson-Mount
Sr. Member of Technical Staff
Zimbra, Inc
A Division of VMware, Inc.

Zimbra ::  the leader in open source messaging and collaboration

Re: Timeout when talking to slow remote SMTP server

[Quanah Gibson-Mount]

--On Thursday, May 03, 2012 9:57 AM -0700 Quanah Gibson-Mount 
qua...@zimbra.com wrote:



I'm having issues sending email to a public list because connecting to
the MX for the list takes too long.  From the postfix log:


This can be ignored, it was because of a firewall rule blocking the new 
hardware I am using from delivering outgoing mail, which has now been fixed.


--Quanah


--

Quanah Gibson-Mount
Sr. Member of Technical Staff
Zimbra, Inc
A Division of VMware, Inc.

Zimbra ::  the leader in open source messaging and collaboration