ragesh
asked on
550 errors
I am having some problems with some outside clients not being able to send incoming mail.
they are getting 550 errors. i think this has to do with relaying but our server doesn't allow relaying.
they are getting 550 errors. i think this has to do with relaying but our server doesn't allow relaying.
ASKER
no this is a 550 error that the sender from other site will receive (as in system administrator error--like when sending to a bad address)
i think sp4 for exch by the way.
i think sp4 for exch by the way.
Did you check the DNS MX records?
Jake
Jake
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ASKER
Thanks...we were on a couple black lists.
No comment has been added lately, so it's time to clean up this TA.
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Goldwing
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I will leave a recommendation in the Cleanup topic area that this question is:
Accept Comment from deana
Please leave any comments here within the next seven days.
PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER!
Goldwing
EE Cleanup Volunteer
It may be caused by mail systems having so many MX records that the DNS UDP packets exceed the default size on the PIX (512 bytes)
You can fix this at the firewall or on the DNS server itself (we fixed the problem on our DNS servers) by running
"dnscmd Server Name/Config /EnableEDnsProbes 0"
See
http://support.microsoft.com/default.aspx?scid=kb;en-us;828263
for more info
You can fix this at the firewall or on the DNS server itself (we fixed the problem on our DNS servers) by running
"dnscmd Server Name/Config /EnableEDnsProbes 0"
See
http://support.microsoft.com/default.aspx?scid=kb;en-us;828263
for more info
550 is an inconsistent database - http://support.microsoft.com/default.aspx?scid=kb;en-us;Q143235