I have a lot of "Rules" which all work fine, except for the TZ one, as I too was searching on Recipient info, which doesn't always work.

From the info in replies I have kindly been sent, and after further checking, it looks like the following criteria are the only ones that work all the time :

Message Header contains "X-Mailing-List: <tz@elsie.nci.nih.gov>" OR Message Header contains "X-Loop: tz@elsie.nci.nih.gov" Thanks to all those who helped. Best Rgds, Dave Stewart Database Information Manager IT Systems Teletext Ltd. t: +44 (0) 20 8323 5707 f: +44 (0) 870 191 2159 e: Dave@teletext.co.uk -----Original Message----- From: Christoph Bugel [mailto:chris@tti-telecom.com <mailto:chris@tti-telecom.com> ] Sent: 24 March 2003 15:50 To: Hal Mueller Cc: Dave Stewart; tz@lecserver.nci.nih.gov Subject: Re: list headers, and filtering rules > You can filter the TZ list quite nicely by using the "Resent-From" > header or the presence of tz@lecserver.nci.nih.gov as a recipient. No > reason to pollute the subject line. Indeed. Or otherwise look for the X-Mailing-List header: X-Mailing-List: <tz@elsie.nci.nih.gov> See also http://www.tux.org/lkml/#s3-18 <http://www.tux.org/lkml/#s3-18> IMPORTANT NOTICE This communication contains information, which is confidential and may also be privileged. It is for the exclusive use of the intended recipient(s). If you are not the intended recipient(s) please note that any form of distribution, copying or use of this communication or the information in it is strictly prohibited and may be unlawful. If you have received this communication in error please return it to the sender. The opinions expressed within this communication are not necessarily those expressed by Teletext Ltd. Teletext Ltd. Building 10 Chiswick Park 566 Chiswick High Road London W4 5TS Registered in England number 2694814 _____________________________________________________________________ This message has been checked for all known viruses by Star Internet delivered through the MessageLabs Virus Control Centre. For further information visit http://www.star.net.uk/stats.asp