>Sent this off to SPAM-L, too...
>
>Has anyone dealt with the 'Fredrik Williamsberg' person who for years,
>apparently, attempts to subscribe to lists on listserve?  His only
>consistency is that he uses a different address every time...but he
>keeps trying several times a week like clockwork.
>
>On our listserv console logs, while trying to figure out where
>another spam came from I noticed that one of his messages 'really'
>came from [log in to unmask], but that may be because
>he tried subscribing with an 'answerme.com' host/domain.
>
>Given that he uses a different address all the time I'm trying to
>find if there's a way to 'filter' by the subscriber's name rather
>than address...
>
>ALSO:  This last weekend we got hit pretty bad with subscription
>attempts with a few more commonalities.
>
>1) sub attempts to our lists from different addresses but with the user
>name 'Washington University NIH Guide Distribution'.
>
>2) sub attempts to our lists from different addresses but with
>the user name given as the name of the list itself.
>
>I think the two are related -- one of the error messages I got back
>from the lists requiring confirmation looked like the person had
>taken a LIST file received from listserv and edited it by adding
>the SUBSCRIPTION command in front of the list address, leaving the
>list name as the 'user name'.
>
>EXAMPLE:
>
>SUBSCRIBE MAAL-L Mid-American Association of Law Libraries
>SUBSCRIBE IHOUSE-L International House List
>
>
>Not really sure if there's answers for these problems, or preventive
>measures...but venting this off to the list makes it feel a _little_
>better...
>
>--Garrie Burr
>  Information Systems
>  Washington University in St. Louis
>  [log in to unmask]
>

Solution to this problem might be to make all of your lists closed, and
thereby subscribing people only after you have been able to make personal
e-mail contact with the actual person.  Of course, this greatly increases
your workload as a list owner, but it greatly decreases your work later
on.  Also, you can place in your list header information about how to
contact the list owner via e-mail to be placed on the list.

Glenn