Well, I think the word is that "everything workED fine" ... your configuration violates basic assuptions about the email infrastructure and perhaps some RFCs as well. Anti-spam software uses these assumptions to validate email. Anti-spam software is getting more and more agressive and less tolerant of what it considers invalid email.
It will be interesting when GTA responds ... On Tue, 19 Sep 2006, Cox, Danny H. wrote: > We do not allow resolves to IP - All IP are in stealth mode and we never > have these issues with other domains. > > Everything works fine... > > Danny > > -----Original Message----- > From: David Morris [mailto:[EMAIL PROTECTED] > Sent: Tuesday, September 19, 2006 5:20 PM > Cc: GnatBox Users Group > Subject: Re: [gb-users] Why are our emails being blocked as SPAM? > > And the originating IP reverse resolves to: ydyn.com which also doesn't > resolve. > > For many / most anti-spam solutions three configuration issues are > important: > a. The HELO name reported by your server should be valid AND > resolve to the IP Address mail is sent from > b. Reverse lookup of the IP address needs to match the > forward name > > These rules keep getting tightened. I finally had to stop using the > GnatBox DNS because I couldn't figure out how to get it to process my > ISPs CName delegation for the PTR record. AOL started refusing to accept > my email. > > Could be that GTA is testing a new version of their anti spam filtering. > So it stopped working for your mail. > > If you check your from IP with the black list search services, I'm sure > you'll find your mail will be blocked. I use www.dnsstuff.com, but it > seems like they are often overloaded and the server returns nada. > > On Tue, 19 Sep 2006, Jason Sopko wrote: > > > Cox, Danny H. wrote: > > > Here is the NDR (below) we got from GTA... Note the "Rejected as > spam". > > > > > > > > It's most likely because the host name of your mail server > > (ms01.ydyn.com) doesn't resolve. > > ------------------------------------------------------ > To unsubscribe: [EMAIL PROTECTED] > For additional commands: [EMAIL PROTECTED] > Archive: http://archives.gnatbox.com/gb-users/ ------------------------------------------------------ To unsubscribe: [EMAIL PROTECTED] For additional commands: [EMAIL PROTECTED] Archive: http://archives.gnatbox.com/gb-users/
