It looks like there are two mail-to-news gateways running for bind-users, so every message to the list is being posted twice to the newsgroup. Here's a diff between the headers of two recent dups.
*** /tmp/header1 Sat Aug 22 11:09:39 2009 --- /tmp/header2 Sat Aug 22 11:09:43 2009 *************** *** 1 **** ! Path: news.eternal-september.org!feeder.eternal-september.org!eternal-september .org!news.glorb.com!news2.glorb.com!news.glorb.com!news.isc.org!nobody --- 1 ---- ! Path: news.eternal-september.org!feeder.eternal-september.org!eternal-september .org!news.glorb.com!news2.glorb.com!news.glorb.com!news.isc.org!not-for-m ail *************** *** 6,10 **** ! Organization: none ! Lines: 109 ! Sender: n...@isc.org ! Approved: use...@isc.org ! Message-ID: <h67p5v$bu...@sf1.isc.org> --- 6,9 ---- ! Organization: Internet Systems Consortium ! Lines: 105 ! Approved: bind-users@lists.isc.org ! Message-ID: <mailman.283.1250387948.14796.bind-us...@lists.isc.org> *************** *** 12 **** ! NNTP-Posting-Host: news.isc.org --- 11 ---- ! NNTP-Posting-Host: webster.isc.org *************** *** 14 **** ! X-Trace: sf1.isc.org 1250387967 12225 204.152.184.108 (16 Aug 2009 01:59:27 GMT) --- 13,14 ---- ! Content-Type: TEXT/plain; charset=us-ascii ! X-Trace: sf1.isc.org 1250387949 12182 204.152.184.12 (16 Aug 2009 01:59:09 GMT) *************** *** 16,18 **** ! NNTP-Posting-Date: Sun, 16 Aug 2009 01:59:27 +0000 (UTC) ! Return-Path: <bind-users-boun...@isc.org> ! X-Original-Message-ID: <200908160159.n7g1x3q8019...@metis.hicks-net.net> --- 16,20 ---- ! NNTP-Posting-Date: Sun, 16 Aug 2009 01:59:09 +0000 (UTC) ! To: bind-users@lists.isc.org ! Return-Path: <ghi...@hicks-net.net> ! X-Original-To: bind-us...@webster.isc.org ! Delivered-To: bind-us...@webster.isc.org *************** *** 25 **** --- 28,31 ---- + Precedence: list + List-Id: BIND Users Mailing List <bind-users.lists.isc.org> + List-Unsubscribe: <https://lists.isc.org/mailman/options/bind-users>, + <mailto:bind-users-requ...@lists.isc.org?subject=unsubscribe> *************** *** 31,32 **** ! Errors-To: bind-users-boun...@isc.org ! Xref: news.eternal-september.org comp.protocols.dns.bind:2013 --- 37 ---- ! Xref: news.eternal-september.org comp.protocols.dns.bind:2014 -- Barry Margolin, bar...@alum.mit.edu Arlington, MA *** PLEASE don't copy me on replies, I'll read them in the group *** _______________________________________________ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users