On 23 Jan 2006 at 14:06, Kenny, Melissa S wrote: > We are having a problem recently when sending commands to Listserv > (version 1.8e.) This is happening with commands which are answered with > 2 messages, one to confirm the command and notify you that the results > are being sent, and the other being the actual results; e.g. "info > refcard" or "review." Occasionally, it seems as if Listserv is > assigning the same message ID to both messages. When this happens, our > Exchange 2000 system is "helpfully" removing one of the messages > (usually the actual results, not the confirmation message, > unfortunately.) You may be a victim of a fast processor ;-) In LISTSERV 14.3, the LISTSERV-generated Message-ID: header was extended to prevent such duplication. I recommend upgrading. There are a lot of useful things that have been fixed and added since 1.8e. -- Francoise Becker Are you subscribed to an innovative LISTSERVr e-mail list? Nominate it for the "LISTSERV Innovation Award" by Feb. 1, 2006 at: http://www.lsoft.com/news/choiceawards.asp