>>>>> "C" == Christian <firstname.lastname@example.org> writes:
C> A bunch of bounced messages have been showing up on my list recently --
C> all of them with PomfretJA@2000c@VMI as the address.
C> Would anyone be able to help me out with this?
What help do you need? We can't really do anything without seeing a
C> I've already tried unsubscribing that address, but to no avail.
What do you mean? The address was on your list, you've removed it, and the
bounces keep coming? Are you sure they aren't resulting from mail that is
queued somewhere? Sometimes you get bounces for a week or more after you
remove the offending addresses. The full bounce will usually give enough
information to be sure.