[Mailman-Users] Re: Spoofing Issue

[Jamie L. Penman-Smithson]

On Mon, 05 Apr 2004 08:55:41 -0400, Doug Straight scribbled down:
> We had an event on Saturday where all 8,000 members got an infected email
> from the list.  It looked just like the newsletter we sent out in most cases
> but some members wrote back telling us they had the "Find the White Rabbit"
> message, and were told by Norton that they had a Beagle variant M infected
> email from us.
> 
> I'd love to hear your ideas on this as it is quite a concern.

The best defense against virii-laden mail is to pass your mailing list
mail through a virus scanning engine of some kind.

In my case, all mail to Mailman gets passed through amavisd-new, which I
can heartily recommend.

The forgery of headers is best handled at the MTA level, anti-spam
technology such as SPF et al are designed to combat this.

HTH

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