Mark, You cannot stop this, but you can limit the length of messages that come through, which should help control it... You may set * Sizelim= 100 in your header.. This limits messages to 100 lines (including header lines) which should reject attached files or messages that are larger than 100 lines.. (You may set it to whatever length you would like, it would be best to go by your average length of messages posted to your list) Jeni On Wed, 7 May 1997, Mark London wrote: > We keep getting people who post to our mailing list with ms-tnef attachments > automatically added to their messages. I don't know if listserv can handle > this, but our version can't, and I don't know how to tell people to turn off > those attachments. Can someone tell me? Thanks. > > Mark >