At 3:10 PM -0600 4/2/03, Steven F Siirila wrote:
Careful there. I used to do that, but it wasn't sufficient. Some spammers create DNS records that map to the machine they are currently spamming through.Not a problem here since we also look up the EHLO name. If that resolves to the caller's IP address, it counts as good as a PTR record in our book.