Cannot send to a number of domains

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Guest

I cannot send mail to a number of domains. I have looked at everything in
exchange and now I am looking at DNS as the problem. The mail comes back
with a delay. How can I test seeing a domain. Can I enter these domains
somewhere in dns
 
Jim Hall said:
I cannot send mail to a number of domains. I have looked at everything in
exchange and now I am looking at DNS as the problem. The mail comes back
with a delay. How can I test seeing a domain. Can I enter these domains
somewhere in dns
Click to expand...

If (SMTP) mail works in general but fails to some
domains/zones then it is usually a failure to make
some of the following match:

The SMTP email server's REPORTED name (what it
tells other email servers) must match the PTR record
for it's address, and that name must have an MX record
that points to a name which resolves to that SAME IP
address.

The following site can report some of these errors (not
the one about your SMTP server reported name -- i.e.,
the one it uses to say "HELO ..." to other SMTP servers):

http://www.dnsreport.com/
 
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