Well IMHO ~ FWIW.. you'll need a rDNS that matches your FQDN if you don't want your email bounced from a lot of email servers..
~Rick > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Todd Holt > Sent: Monday, June 02, 2003 12:42 PM - FamHost > To: [EMAIL PROTECTED] > Subject: RE: [IMail Forum] OT: Reverse DNS > > > What is the RFC requirement for Reverse DNS? That it exist? Or that it > match the official server name? > > I thought that it only had to exist. In our case (and in many cases as > I talk with more admins) the reverse DNS for our static Ips is not > delegated by our ISP, but returns their name in the reverse DNS lookup. > I have been told repeatedly that this is OK, as long as something is > returned. > > Can someone clarify? > > Todd Holt > Xidix Technologies, Inc > Las Vegas, NV 89118 USA > www.xidix.com > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Sheldon > Koehler > Sent: Monday, June 02, 2003 10:31 AM > To: [EMAIL PROTECTED] > Subject: Re: [IMail Forum] OT: Reverse DNS > > > > In our tests, about 20% to 40% of legitimate E-mail is sent from a > > mailserver with no reverse DNS entry (oddly enough, probably about 1/2 > > > of them have admins that swear that they do have a reverse DNS > > entry!). > > With many of the admins I have dealt with over the years, they have > reverse DNS setup but not completely. They may have domain.com setup and > may even have mail.domain.com. But then they go and name their mail > server name.domain.com and that is what the email says it is coming > from. I run into this with schools all the time. > > Remember, there is no test or certification needed to set up a mail > server... and more than once I have been asked "What is RFC?". > > Sheldon > > > Sheldon Koehler, Owner/Partner http://www.tenforward.com > Ten Forward Communications 360-457-9023 > Nationwide access, neighborhood support! > > "Whenever you find yourself on the side of the majority, it's time to > pause and reflect." Mark Twain > > > > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html > List Archive: > http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ > --- > [This E-mail scanned for viruses by Declude Virus > (http://www.declude.com)] > > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
