>>> Are you under any policy requirement to accept mail from dynamically-assigned IP space?
Thanks, Bob, I appreciate the feedback. In fact, we're pretty aggressive on filtering and I've been using dynablock.dsnbl.org at the SMTP level to stop a bunch (I kill 35-45% of incoming email with RBLs at SMTP connection). I added dnsbl.sorbs.net to the list yesterday; we'll see how that works out. >>> Another spam sign is a system that HELO's with something other than a FQDN. I tried that and reverse DNS checks when we first installed this 2 months ago. I was surprised and frustrated at the number of legitimate (non-UCE, non-spam) servers that were misconfigured, with the lion's share of the admins having no freakin' clue. Big names, too. It was causing so much work for me, and so many problems for my users, that I gave up. Maybe some day, someone REALLY big will start enforcing the RFCs before they will accept email, but I felt like it was a one-man windmill tilting against the Internet. >>> Post the address or send to Chris, this belongs in EvilNumbers. Thank you, Loren, I'll do exactly that. Greg
