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Emails to AT&T Customers Not Being Received


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Customers of our website who use AT&T are not receiving our emails.


We contacted AT&T and they said the server is NOT blacklisted.


But did a test and found this...


SMTP error from remote mail server after RCPT TO:: host aln-mailrelay.att.net []: 550 [PERMFAIL] att.net requires valid sender domain


Based on what I read here: http://rbl.att.net/block_enduser.html


It says this "We were unable to verify the identity of the sending system."


Any suggestions on how to resolve this? Is this something in my server or something in my osCommerce that I can fix.


Apparently it is sending from


<account name>@vps.<server company>.net


Instead of info@<website>.com


Thoughts? Suggestions?


Thanks in advance!

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