[Mailman-Users] Spam emails

[Geoff Shang]

On Wed, 8 Dec 2010, Schwartz, Robert - IS wrote:

> Recently I've started receiving spam messages submitted to by mailing 
> list.  How can I reject all email not submitted by members without 
> having to add them to a list?

Set the generic non-member action to discard.  It's in privacy/sender 
filters.  All non-members who aren't in any of the other non-member lists 
on that page will have their posts discarded.

You can also set it to reject, but this will cause a rejection note to be 
sent, and if this mail is in fact spam it will probably cause backscatter, 
so use discard unless it's actual people doing the posting.

Geoff.