> The error message that appears below is one of dozens that the
 > Listserv here has received for the past three or so months. These
 > errors come from a domain called sslnet.com, but I searched across all
 > the 1,200+ lists on my server and I couldn't find anything resembling
 > this address in any of the lists, nor can I find any subscriptions
 > with the userid that's identified as being undeliverable. The error
 > message never includes a copy of the actual posting that elicited the
 > message or any other information beyond that of what I included in this
 > copy. Attempts at contacting the domain administrator for sslnet.com
 > via e-mail resulted in totaly useless responses. An attempt at calling
 > this domain's administrator on the phone yesterday went unanswered.

My guess would be a bad forwarding address somewhere.  I believe
the subscription probe feature was designed to help with problems
like this.  The catch is that you have a LOT of lists.

Dennis Boone
H-Net