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554 transaction failed lack of security
From: Jason Ledford (jledford
biltmore.com)
Date: Thu Jan 10 2008 - 11:25:34 CST
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Hello all,
I am getting this message when trying to send an email to a specific domain
<fakeuserfakedomain.com>: host mail3.fakedomain.com[XXX.XXX.4.26] said: 554
Transaction Failed Sender Refused due to lack of security (in reply to
MAIL
FROM command)
What exactly does this mean. What security are they looking for? If you need any more information from me I would be happy to give it. This is also only happening for this domain, all other mail is flowing as normal. I can telnet to the mail server in question but as soon as I enter the mail from command it gives me that error. Any help would be appreciated.
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