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Old 1st November 2009, 19:44
Edek7 Edek7 is offline
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I had something similar to your situation but i finally was able to get rid blocked ISP host from my e-mail route. I bought a co-location service and set up a proxy host on Debian lenny with ASSP and proxy postfix for non-local email delivery.
Everything is working fine except that i still need to set-up cname and revDNS for my proxy email gateway.

The strangest thing ever i noticed the host is unable to send email to scglobal.net.

The error is :
Nov 1 13:49:58 proxy postfix/error[17158]: 0AD31105C74A: to=<xxxxxx@sbcglobal.net>, relay=none, delay=183349, delays=183349/0.01/0/0, dsn=4.3.0, status=deferred (mail transport unavailable)

No idea how to resolve this problem. Everywhere else emails are send with OK status. Didn`t check the gmail.com or yahoo.com but im my interest now is the sbcglobal.net because ppl that use my server want to send the emails there . Nothing seems to resolve it... I tried to set up transport manually but without any sucess.

Somebody know how to resolve my problem ?
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