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#550 4.4.7 QUEUE.Expired; message expired ##

Posted on 2013-06-19
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Last Modified: 2013-06-19
We can't seem to send emails to *@verizon.net addresses. The error we get after a while is #550 4.4.7 QUEUE.Expired; message expired ##. Messages sent to that domain just queue for a while then error out. We can send to all other domains. I checked and our mail server isn't on any blacklists I can find. I don't think it would do me any good to contact Verizon or even how I'd get a hold of anyone in their email department. is there anything I can do.
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Question by:Axis52401
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NiceCuppaTea earned 2000 total points
ID: 39259940
If you send a message to a verizon.net address then look in the queues before the message expires it should give you a different message in the last error column, This should give us more of a clue as to where the problem lies. Either that or you can enable SMTP logging and give us the output from a mail message sent to verizon
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by:Axis52401
ID: 39259990
Thanks it says there that we are being blocked by some verizon blacklist, thanks for your help
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