I seem to rember this being discussed before, but I can't find it in the archives anywhere. So please excuse me for asking this if it's been answered before...
My iMail server is working flawlessly, and has been working great for more than 3 years. Now, all of a sudden, we can't seem to send mail to any account on earthlink.net. We can send to anyone else, it's just earthlink that's bouncing our mail back. The bounce messages give no valuble information, just "undeliverable to [EMAIL PROTECTED]". Is it possible that Earthlink is doing a reverse DNS lookup on domains that send email to their server? I currently do not have proper PTR records, as I only have a small block of IPs, and I'm having problems getting my provider to delegate authority to my DNS servers (please excuse me if my teminology is wacked, I'm not a real DNS guy). Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/
