From: mouss (mlist.onlyfree.fr)
Date: Thu Dec 13 2007 - 14:58:10 CST

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Greg Coates wrote:
> I checked my logs again. It looks like Postfix is attempting to contact
> multiple MX boxes at prodigy, and all time out. Would that indicate
> anything different?

# telnet sbcmx1.prodigy.net 25
Trying 207.115.21.20...
Connected to sbcmx1.prodigy.net.
Escape character is '^]'.
220 flpi099.prodigy.net ESMTP Sendmail 8.13.8 inb regex/8.13.8; Thu, 13
Dec 2007 12:53:28 -0800
quit
221 2.0.0 flpi099.prodigy.net closing connection
Connection closed by foreign host.

there is no "greet pause" (quick response).

if your server is on a residential host, or if it uses generic rDNS, or
if it has broken rDNS setup, then that would explain the problem.

same is if you have a borken firewall/proxy/... in the path, although
this would break a lot of other connections.

>
> Log contents:
> Dec 13 14:57:41 divinereflectionsphoto postfix/smtp[18267]: connect to
> sbcmx1.prodigy.net[207.115.21.20]: Connection timed out (port 25)
> Dec 13 14:58:11 divinereflectionsphoto postfix/smtp[18267]: connect to
> sbcmx4.prodigy.net[207.115.20.23]: Connection timed out (port 25)
> Dec 13 14:58:41 divinereflectionsphoto postfix/smtp[18267]: connect to
> sbcmx7.prodigy.net[207.115.37.21]: Connection timed out (port 25)
> Dec 13 14:59:11 divinereflectionsphoto postfix/smtp[18267]: connect to
> sbcmx6.prodigy.net[207.115.36.20]: Connection timed out (port 25)
> Dec 13 14:59:11 divinereflectionsphoto postfix/smtp[18267]:
> 342FC1670037: to=<menziemanorsuesbcglobal.net>,
> orig_to=<suetapestryleadershipconcepts.com>, relay=none, delay=81462,
> delays=81310/0.03/151/0, dsn=4.4.1, status=deferred (connect to
> sbcmx6.prodigy.net[207.115.36.20]: Connection timed out)
>

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