troubleshooting Question

Email sent rejected #550 5.7.1

Avatar of nourben
nourbenFlag for United States of America asked on
Exchange
5 Comments2 Solutions1762 ViewsLast Modified:
I have user trying to send emails to
Delivery has failed to these recipients or distribution lists:

aaa.bbb@sbcglobal.net
Your message wasn't delivered because of security policies. Microsoft
Exchange will not try to redeliver this message for you. Please provide the
following diagnostic text to your system administrator.

The following organization rejected your message: flph259.prodigy.net.

________________________________

Sent by Microsoft Exchange Server 2007







Diagnostic information for administrators:

Generating server: our transport server

aaa.bbb@sbcglobal.net
flph259.prodigy.net #550 5.7.1 Connections not accepted from servers without
a valid sender domain.flph259 Fix reverse DNS for x.x.x.x ##
ASKER CERTIFIED SOLUTION
LLMorrisson

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