>Other than trying to keep the list names confidential within the company, is >there a solution?
You run your own DNS, right? Create a private TLD like dmp.dmp in DNS, with an MX pointing to imail In Imail, create a mail host dmp.dmp, and under there create the your internal mailing lists, [EMAIL PROTECTED] This won't block anybody inside forging a mail from as [EMAIL PROTECTED], but at least internet won't be able to send forged mail since internet doesn't know about TLD .dmp. There are other approaches, but they require a real list server and/or imgate. 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/
