I did read in the knowledge base that larger ISP's are starting to use reverse DNS to make sure that the sender's IP yields the correct name on a reverse lookup. I ran a lookup test on our IP and it yields "h-67-100-163-220.CHCGILGM.covad.net"
rather than our host name. I guess the DSL provider is doing this part.
But I still can't tell from this SMTP error log if reverse DNS not matching is what is happening here.




At 11:37 AM 9/9/2003 -0500, you wrote:

I guess the "so what" is that I am sending to myself in this case.

but they disallow it


I am not sure we can send to any Earthlink addresses at this point as several have failed.

maybe you are blacklisted? how about you telnetting from a different address to that same earthlink mx and try to send to the same recipient


Just to test your notion "... it seems like they have a policy of refusing mail to "cagodsy", not your fault."
I tried sending the same test using our DSL provider's SMTP and it worked every time.

ok, this smells like they have your IP blocked


It seems like this error
"550-EarthLink does not recognize your computer (67.100.163.220) as connecting from an EarthLink connection."
and the test using the DSL proverder's SMTP
is indicating that they don't like something about my computer:
Rather than "... they have a policy of refusing mail to "cagodsy", not your fault."

agreed. but their error msg could say something like "we block relay FROM your IP" rather than "we block relay TO recipient x", but that would be too easy.


Len


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