[KLUG Members] Blocking SPAM using Mailman

[Bruce Smith]

At KLUG, we simply changed the Mailman configuration to bounce any
messages from non-subscribers (instead of moderating the messages).

Any subscriber who mistakenly sends from the wrong email address, is
bounced and has to resend their message from the correct email.

Works great for us!

For older versions of mailman (like Sourceforge uses), there is a cron
job which can run periodically and silently purge the moderation queue.

 - BS


> Hello
> Does anyone have success blocking SPAM sent to members only mailing lists that
> use mailman (version 2.1.6)?  The lists themselves aren't getting SPAM because
> it's a members only list, however, the admin/moderator is getting lots of SPAM
> in the moderation queue.
> 
> I've seen the ban from (subscribing to) list options and add to discard list,
> however, the emails are randomized and I'm not sure if blacklisting dynamic IP
> addresses is a good solution either.  I've even tried using some of the regular
> expression legacy SPAM options based on subjects, with some success.
> 
> I've read through some of the mailman documentation, but couldn't find much
> usefulness regarding SPAM filters.  Any suggestions that are known to work are
> welcome.