At 09:39 05/03/2004 Monday, Mendez, Rottman wrote:

 >How can I Prevent this from occurring again?

Are you *sure* that it was LISTSERV queue that re-sent the messages, or
was it a SENDMAIL problem?

In the simple case of a user sending mail to a list:

user -> user_mail_client -> LISTSERV_mail_server -> LISTSERV ->
LISTSERV_mail_client -> subscribers_mail_servers

/Pete