Tom Fischer wrote:
i have much trouble sending to comcast Mailservers. The comcast Servers
returns "450 [TEMPFAIL] comcast.net requires valid sender domain".
So, what domain does the envelope-from have on a typical mail
that gets rejected? Does that domain exist, have proper rDNS
and matching forward DNS?
Sometimes the mail goes thru after a few hours but mostly not.
Is your DNS provider unreliable?
What i
can see with ngrep
ngrep of what?
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]> ..."
Please, don't obfuscate. It makes it hard for us to help you.
Post a complete log segment of a failing transaction.
and does not wait for return code, so comacst servers saw the To-Header
not correctly.
Unlikely to be the headers (the 822 addresses). More likely
to be the envelope (the 821 addresses, specifically the From).
I think that the problem is on comcast Side but how to
explain my customers.
I suspect not.
- Jeremy
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