Checked with AOL, they did stop doing this. They just check that some form of valid rDNS exists.
Like I said, I don't use this check because of the false positives, but to dismiss it just because some day the spammers might get around it seems odd. Serious car thieves can unlock a locked car in a heartbeat, but I still lock mine. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ken Cornetet Sent: Thursday, July 01, 2004 3:27 PM To: Exchange Discussions Subject: RE: MX records and Reverse DNS lookup AOL does NOT do this check! We send thousands of emails per week to AOL, and our HELO does not match the PTR for our firewall's public IP. This check simply will not stop spam zombies. What will happen is that spam zombie writers will simply add code to do a reverse lookup and stick that string in the HELO. Check foiled. _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&lang=english To unsubscribe send a blank email to [EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. Attn: Discussion List Management 475 Park Avenue South New York, NY 10016 Please include the email address which you have been contacted with.
