I didn't see anything in the FAQ that seemed to be relevant to this, and the ORNL search engine wants to split 'message-id' into 'message' and 'id'. Please accept my apologies if this has been covered in the past. I just received a pair of messages from PayPal, which appears to be using qmail. I'm fortunate to have received a pair of messages (headers below), because I use procmail to eliminate duplicate messages based upon the Message-ID header, which RFC 822 requires to be unique. However, I'm a paranoid bastard, and shunt all "duplicate" email to a duplicates folder, rather than sending it to /dev/null, so I caught the false duplicate. My question is, is this a known problem with qmail, possibly a misconfiguration or something correctable by an upgrade? I'd like to be able to tell PayPal more than "Your mailer is doing Bad Things.". Thanks, Sten ===header 1=== >From [EMAIL PROTECTED] Mon Jul 31 21:24:49 2000 Return-Path: <[EMAIL PROTECTED]> Received: from localhost by sten.sten.org (8.10.2/8.10.2/grendel) with ESMTP id e712Omo25542 for <x>; Mon, 31 Jul 2000 21:24:48 -0500 X-Received-IP: (IDENT:x [127.0.0.1]) Received: from mail.jump.net [206.196.91.7] by localhost with IMAP (fetchmail-5.4.1) for x (multi-drop); Mon, 31 Jul 2000 21:24:48 -0500 (CDT) Received: (from x) by mail15.jump.net (8.10.2/) id e712LU004043 for x; Mon, 31 Jul 2000 21:21:30 -0500 (CDT) Received: from web5.paypal.com (web5.paypal.com [208.48.73.218]) by mail15.jump.net (8.10.2/) with SMTP id e712LTk04037 for <x>; Mon, 31 Jul 2000 21:21:30 -0500 (CDT) Received: from web5.paypal.com (web5.paypal.com [208.48.73.218]) by mail15.jump.net (8.10.2/) with SMTP id e712LTk04037 for <x>; Mon, 31 Jul 2000 21:21:30 -0500 (CDT) Received: (qmail 28583 invoked by uid 99); 1 Aug 2000 02:20:39 -0000 Date: 1 Aug 2000 02:20:39 -0000 Message-ID: <[EMAIL PROTECTED]> From: [EMAIL PROTECTED] To: x ===header 2=== >From [EMAIL PROTECTED] Mon Jul 31 21:24:48 2000 Return-Path: <[EMAIL PROTECTED]> Received: from localhost by sten.sten.org (8.10.2/8.10.2/grendel) with ESMTP id e712Omo25536 for <x>; Mon, 31 Jul 2000 21:24:48 -0500 X-Received-IP: (IDENT:x [127.0.0.1]) Received: from mail.jump.net [206.196.91.7] by localhost with IMAP (fetchmail-5.4.1) for x (multi-drop); Mon, 31 Jul 2000 21:24:48 -0500 (CDT) Received: (from x) by mail.jump.net (8.9.1/) id VAA29732 for x; Mon, 31 Jul 2000 21:21:29 -0500 (CDT) From: [EMAIL PROTECTED] Received: from web5.paypal.com (web5.paypal.com [208.48.73.218]) by mail.jump.net (8.9.1/) with SMTP id VAA29728 for <x>; Mon, 31 Jul 2000 21:21:29 -0500 (CDT) Received: from web5.paypal.com (web5.paypal.com [208.48.73.218]) by mail.jump.net (8.9.1/) with SMTP id VAA29728 for <x>; Mon, 31 Jul 2000 21:21:29 -0500 (CDT) Received: (qmail 28582 invoked by uid 99); 1 Aug 2000 02:20:39 -0000 Date: 1 Aug 2000 02:20:39 -0000 Message-ID: <[EMAIL PROTECTED]> To: x -- #include <disclaimer.h> /* Sten Drescher */ [The Internet is] like a library in Resident Evil. - Mark Waid, 23 Aug 2000