On Mon, 14 Oct 2002 00:48:14 +1000 Michael James <[EMAIL PROTECTED]> wrote:
>> What is a good virus (worm) protection tool for mailman? > I'm working on a Mailman, Postfix, Sophos-Mailmonitor-Sweep setup. > Looks good but just got it working so I'll let you know. I take a multi-fold approach: 1) Front Mailman with TMDA 2) MIME strip all posts 3) Discard (silently) all messages which end up too short (20 bytes) after MIME stripping. 4) Authenticate against both From: and envelope (TMDA and Mailman) Since I added the TMDA setup my rate of SPAM and virus messages hitting the moderation interface (all my lists are hand moderated) has fallen from 20 - 30 a day to a grand total of two messages in the last three months. Quite an improvement. MIME stripping, which I implemented before TMDA, castrates all virus and the majority of SPAM, often whacking them down so hard that they fail the 20 byte rule and are discarded silently. The fat that it also makes posts that I want on my lists (no HTML etc), is also pleasant. Authentication against both From: and Envelope was useful in Mailman, but was a real gainer when it came along with TMDA. That, more so than the TMDA whitelist filtering, is what cleaned up my message stream. -- J C Lawrence ---------(*) Satan, oscillate my metallic sonatas. [EMAIL PROTECTED] He lived as a devil, eh? http://www.kanga.nu/~claw/ Evil is a name of a foeman, as I live. ------------------------------------------------------ Mailman-Users mailing list [EMAIL PROTECTED] http://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://www.python.org/cgi-bin/faqw-mm.py Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/