>I read an article that some spam program's do not send a HELO or EHLO when >they send out spam e-mails. The following outake came from and article in >Security Focus on hints to block spammer's: > >"Some spam software does not send a HELO, and by using this option you may >successfully block such bone-headed software." > >The following is the link to this article: > >http://online.securityfocus.com/infocus/1593 > >Thanks for all your advise,
ehlo/helo should be required before MAIL FROM:. this requirement can be activated in IMGate, but I have not seen many spammers NOT send ehlo/helo. So, marginally effective. Len www.menandmice.com/DNS-training : DNS Training BIND8NT.MEIway.com : ISC BIND for NT4 & W2K IMGate.MEIway.com : Build free, hi-perf, anti-abuse mail gateways Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Please visit the Knowledge Base for answers to frequently asked questions: http://www.ipswitch.com/support/IMail/
