RE: [IMail Forum] Whitelisted domains don't work!

[ipswitch]

Scott, You don't need to be taught :-) ... however, I'll explain my point of view to the other list members: PTR records point to one single IP address. If you use IMail virtual domains (all domains running on the same IP), the dns reverse check and helo value both show the main machines IP and name, consequently failing the reverse and helo "antispam" tests for every virtual domain. If you want to keep multiple domains on the same IMail server machine, you must dedicate a separate IP address for every single mail domain you are hosting, just to satisfy the fancy tests some smart mail admins might activate. This seems like a waste of address space to me. Some admins here may enjoy the comfort of unlimited address space, but I don't. Marius -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of R. Scott Perry Sent: Monday, July 19, 2004 1:00 PM To: [EMAIL PROTECTED] Subject: RE: [IMail Forum] Whitelisted domains don't work!     >VALHELO and REVDNS produce more false positives than helping with spam, as >professional spammers have perfect reverse dns and flawless helo values... >Are you hosting more than one single domain on your mailserver? Yes? Then >*your* mailserver fails these tests as well! Why would a mailserver fail either of those tests because it has more than one domain on it? The validity of the HELO data and reverse DNS entry have nothing to do with the number of domains handled by the server. -Scott