E-mail/DNS quuestion

[gaf at blu.org (Jerry Feldman)]

This is not quite a Linux question, but  since last Tuesday, I have been 
unable to send email directly from my Linux box to any mediaone address.

The message I get bounced back from mediaone servers is:
Final-Recipient: RFC822; gaf at mediaone.net
Action: failed
Status: 5.5.0
Remote-MTA: DNS; chmls19.mediaone.net
Diagnostic-Code: SMTP; 501 5.1.8 <gaf at mediaone.net>... Domain of sender 
address gaf at gaf.ne.mediaone.net does not exist
Last-Attempt-Date: Sat, 16 Dec 2000 10:06:34 -0500

I can send successfully to virtually every other address. 
gaf.ne.mediaone.net is properly configured by the mediaone DNS services.

I do run a Linksys BEFSR41 Cable Modem/Router with port 25 open. 

My sendmail.cf file has not changed since September. There are several 
other people on this list who have a similar configuration that I have:

linux-->sendmail--->Cable Modem/Router--->Cable Modem



-- 
Jerry Feldman <gaf at blu.org>
Boston Linux and Unix user group
http://www.blu.org


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