I don't believe there's an RFC that requires it, but more and more places are getting fed up with spam and using this as one method of trying to reduce it.. personally I'm not sure it works as most dynamic dialup pools still have reverse DNS so it doesn't really prove much.
Personally if you can get it in place I would do so as rightly or wrongly it will happen more and more.. Paul > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Sent: Tuesday, June 22, 2004 6:24 PM > To: Exchange Discussions > Subject: RE: REVERSE DNS LOOKUP FOR EXCHANGE SERVER > Importance: High > > > Hey Guys, > > Just wondering if anyone knows where I can find something on policy > regulating reverse DNS lookups for your e-mail server? I have one guy > that's blocking e-mails from my domain. Situation I have is the > following: > - E-mail is being received on one IP address from my ISP, > but when mail > leaves my exchange server it shows that it is coming from another IP > address that I own from my ISP. So when they do a reverse DNS lookup, > the IP addresses don't match up, and hence their rule blocks my mail. > > Thanks > > _________________________________________________________________ > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > Web Interface: > http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&t > ext_mode=&lang=english > To unsubscribe send a blank email to > %%email.unsub%% > Exchange List admin: [EMAIL PROTECTED] > To unsubscribe via postal mail, please contact us at: > Jupitermedia Corp. > Attn: Discussion List Management > 475 Park Avenue South > New York, NY 10016 > > Please include the email address which you have been contacted with. > _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&lang=english To unsubscribe send a blank email to [EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. Attn: Discussion List Management 475 Park Avenue South New York, NY 10016 Please include the email address which you have been contacted with.
