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Old 9th February 2009, 07:20
Allen15 Allen15 is offline
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Join Date: Jan 2009
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Thanks, and I've tried setting my options in webmail prior to sending, but I am still getting errors when I send to some, but not all domains:

Final-Recipient: rfc822;
Original-Recipient: rfc822;
Action: failed
Status: 5.0.0
Remote-MTA: dns;
Diagnostic-Code: smtp; 550-Verification failed for
<> 550-The mail server could not deliver mail
to The account or domain may not exist,
they may be blacklisted, or missing the proper dns entries. 550 Sender
verify failed

How do I allow a distant mail server to verify sender's validity? I get the feeling that this is some anti-spam measure that I'm up against...


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