Hello List,
i have much trouble sending to comcast Mailservers. The comcast Servers
returns "450 [TEMPFAIL] comcast.net requires valid sender domain".
Sometimes the mail goes thru after a few hours but mostly not. What i
can see with ngrep is that my exim must wait a long time for Return
Messages and then send line to the comcast servers like this
"From:<[EMAIL PROTECTED]> To:<[EMAIL PROTECTED]> ..."
and does not wait for return code, so comacst servers saw the To-Header
not correctly. I think that the problem is on comcast Side but how to
explain my customers.
Anybody an idea?
Regards
Tom
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