How many people actually control their own reverse dns? Where worked for an ISP we had our reverse DNS set up this way. The place where I have my servers asked me what I wanted my reverse DNS to be called, but I just left it as the default. Travis is right, they must be rejecting alot of e-mail. Scott
---------- Original Message ---------------------------------- From: "Travis Rabe" <[EMAIL PROTECTED]> Reply-To: [EMAIL PROTECTED] Date: Tue, 13 Jan 2004 10:28:26 -0800 >Usually the problem is that people don't have a reverse entry at all. The >fact that you have one, should be okay. Yes, it would be nice to match the >reverse with the forward, but there is no such RFC or rule that I know of >that states that this is necessary. I would say more than likely that this >ISP is a little overzealous. If they reject mail where the reveres name >does not match the forward, they must reject A LOT of mail. > >Travis > >-----Original Message----- >From: [EMAIL PROTECTED] >[mailto:[EMAIL PROTECTED] Behalf Of Paul Navarre >Sent: Tuesday, January 13, 2004 10:24 AM >To: [EMAIL PROTECTED] >Subject: [IMail Forum] Reverse DNS Question > >A client of mine told me that he couldn't send email to a particular >address. The intended >recipient's ISP is blocking the message. > >After contacting the ISP in question, they sent me the following reply: > >> The reverse DNS entry on the server's IP should match one of >> the server's forward DNS names, for example >> "mail.netinteraction.com" or "mx1.netinteraction.com", so >> that it can be easily recognized by other sites as a >> legitimate mail server. Right now, the reverse entry is >> "208-151-247-226.netinteraction.com", which is not very helpful. > >The host name for the Imail server is netinteraction.com, so my >understanding is that this my >reverse DNS is "by the book". > >I have two questions. The first question is how should I respond to these >folks? Is there any merit >whatsoever in what they are saying? Does anyone have a reference that I can >point them to that >clearly states why this is incorrect? > >The 2nd question is even if these guys are not respecting valid >configurations, is there a "best >practice" that would make my life easier when it comes to overzealous ISPs? > >Paul Navarre > > >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/ > > >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/ > 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/
