Ben's response is correct. I just had the same problem with a subscriber's email looping. Fortunately, some duplicate checking by LISTSERV(R) ameliorated the problem. Note the header: |Received: from ccgate.tiffinu.edu (ccgate.tiffin.edu [199.218.239.3]) There is NO Internet domain of TIFFINU.EDU, but there is of TIFFIN.EDU. Check for subscribers in THAT domain. /Pete -- |Return-Path: <[log in to unmask]> |Received: from TREARN (NJE origin SMTP@TREARN) by VM.EGE.EDU.TR (LMail |V1.2a/1.8a) with BSMTP id 2415 for <TURKISTAN-N@TREARN>; Sat, 28 Mar 1998 |18:38:49 +0200 |Received: from dialup.oar.net by vm.ege.edu.tr (IBM VM SMTP V2R2) with TCP; | Sat, 28 Mar 98 18:38:30 TUR |Received: from ccgate.tiffinu.edu (ccgate.tiffin.edu [199.218.239.3]) | by dialup.oar.net (8.8.8/8.8.8) with SMTP id LAA22895; | Sat, 28 Mar 1998 11:36:56 -0500 (EST) |From: [log in to unmask] |Received: from POP3 Client by ccgate.tiffinu.edu (ccMail Link to SMTP |R8.10.00) | id AA891097540; Sat, 28 Mar 98 11:37:17 -0500 |Message-Id: <[log in to unmask]> |X-Mailer: ccMail Link to SMTP R8.10.00 |Date: Thu, 26 Mar 98 21:45:48 -0500