RE: [IMail Forum] Reverse DNS Check

[Dan Barker]

If that is the case, hurray! ("the same holds true for SPF").   That's the purpose of SPF. It was never intended to prevent spam, and can't really, because - as you've seen - spammers can set up SPF records as well. What it does provide is the identity of the originating system. Now, with spam in hand and the identity confirmed, you have the legal recourse to stop the offender.           (unless it's overseas, of course).   Dan -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]On Behalf Of Mike Odryna Sent: Tuesday, November 08, 2005 11:03 PM To: IMail_Forum@list.ipswitch.com Subject: RE: [IMail Forum] Reverse DNS Check We tried to institute it a couple of weeks back.  It appears that the Spammers have learned to setup their DNS correctly.  We got more reverse DNS failures on legitimate mail than we did with spam.  We are finding the same holds true for SPF as well.   Mike Odryna Owner Island Pond Computer http://www.islandpc.com (603)635-8700 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Website World Sent: Tuesday, November 08, 2005 10:45 PM To: imail_forum@list.ipswitch.com Subject: [IMail Forum] Reverse DNS Check Are most people doing a reverse DNS check now on incoming email?     Mike