Maybe a dynamic dns setup using that dns name as your routers. I use http://www.dyndns.org/ and am very happy with them. They have Linux clients.
That way when others (xo.com, aol.com.etc..) do a check on your Hostname they will actually get a record for the domain name. This won't help if they are doing reverse DNS lookups (check the IP, go to the IP owners DNS servers and do a lookup for the dns that matches the IP). But your error looks more like a hostname lookup than a reverse dns lookup. -David At 08:50 AM 2/26/2002, you wrote: >Is anyone out there using their primary roadrunner machine (i.e. the one with >the "live" IP address) as a mail relay host? Most domains accept my mail >just fine but others (xo.com, aol.com most noteably) reject my mail returning >some version of the following error: > >... while talking to triton.xo.com.: > >>> MAIL From:<[EMAIL PROTECTED]> SIZE=866 ><<< 501 5.1.8 <[EMAIL PROTECTED]>... Sender domain must exist > >I imagine this is due to roadrunner not adding my host name, paloverde, to >DNS when it assigns the IP address. So, the question becomes is there any >way to fix this so I can mail my partents at their AOL address using my >machine (paloverde) as a mail router? And, just in case anyone is worried, I >am an avid anti-spammer and I'm not trying to use my machine to spam. > >I am running RH 7.1 and I checked the /etc/mail/sendmail.mc file but I can't >see anywhere in the file where I can fix this problem. > >Any help would be greatly appreciated. > >Thanks! > >Greg >_______________________________________________ >TriLUG mailing list >http://www.trilug.org/mailman/listinfo/trilug
