[Fwd: Delivery Status Notification (Failure)]

I can't find an address to complain about the mailing list itself, so apologies but I'm posting directly to this list.
Everytime I post to this group, I get returned mails about OTHER subscribers' invalid accounts, like the one below.
What'sup?  This seems to be a new phenomenon.  Should the postmaster@postgresql.org be getting these and discarding
them?

Thanks,
Craig


-------- Original Message --------
Subject: Delivery Status Notification (Failure)
Date: Wed, 12 Jul 2006 13:15:16 -0400
From: postmaster@usaemail.enpocket.com
To: cjames@modgraph-usa.com

This is an automatically generated Delivery Status Notification.

Delivery to the following recipients failed.

       martin@usaemail.enpocket.com