The mailer and LISTSERV(tm) log files would be the best source of information - for example, what exactly is in the logfiles at the time the message from the application arrives? And, based on what you've included below, is "the application" in fact generating messages addressed to "[log in to unmask]" rather than the usual list address (not "-request")? What is the FROM address in the application-generated messages, and have you looked in that mailbox to see what is being sent there? To see who has been served off, submit a SERVE LIST command, but there is some chance that only works for the Postmaster, I'm not sure about that point. >>> [log in to unmask] 8/12/2005 2:04:17 PM >>> How can I get a list of those served out, rather than guess as to who has. I have done SERVE on the obvious. Do you think it is worth doing LOOPCHECK NONE for a short time? What else will tell me what the error actually is rather than this generic garbage below? Is there some debug prameter I can turn on for a short time to catch this error? THE ERROR ------------------------------ Message in error ------------------------------- Received: from s-listserv.thomsonlearning.com (s-listserv.thomsonlearning.com [198.80.146.63]) by s-listserv.thomsonlearning.com (8.11.6/8.11.6) with ESMTP id j7CF59232447 for <[log in to unmask]>; Fri, 12 Aug 2005 11:05:09 -0400 Date: Fri, 12 Aug 2005 11:05:09 -0400 From: "L-Soft list server at S-LISTSERV.THOMSONLEARNING.COM (1.8e)" <[log in to unmask]> Subject: Your message to [log in to unmask] To: [log in to unmask] Message-ID: <[log in to unmask]> X-LSV-ListID: SW-CONNECTION Fri, 12 Aug 2005 11:05:09 Your message to [log in to unmask] has been forwarded to the "list owners" (the people who manage the SW-CONNECTION list). If you wanted to reach a human being, you used the correct procedure and you can ignore the remainder of this message. If you were trying to send a command for the computer to execute, please read on.