Two different methods of spaming, that both involve your list in some way.

They were probably not generated by your list, yet some header of the spamage referenced your list.  In the first case, could be a bounce from a postmaster address at an external site trying to email your list.  In the Error Monitor Report, your list OWNER-listname was the bounce to address.

Join the club :-) -- a not very elite group.

/Pete

At 21:13 4/11/2006 Tuesday, Tim Casten wrote:
>Within the last week, I've been getting reports from the system that some 
>messages could not be delivered.  But the undeliverable messages were FROM 
>someone I've never heard of and it's clearly spam and I don't even know 
>how my particular list is involved.  Here's one of the error messages (to 
>which the bogus message was attached):
>
>The enclosed message, found in the ZFW-TMU mailbox and shown under the spool ID
>25704  in the  system log,  has been  identified as  a possible  delivery error
>notice for  the following reason: mail  origin is listed in  the "Filter=" list
>header keyword (or its default value for the ZFW-TMU list).
>
>At the same time I started getting these, I started getting monitor 
>reports from the same list on subscribers who - well, they're NOT subscribed.