This is usually a configuration/capability issue at the client level, rather than a LISTSERV or mail server issue. Attachments other than text and html are encoded by the sender's email software. The interpretation of an encoded attachment is done by the receiver's email software, or in the the case of archived messages viewed via the web interface, by the viewer's browser software. I advise against the use of anything other than plain text in messages posted to lists, unless you are absolutely certain that every subscriber is using email/browser software which is capable of interpreting non-text attachments, has configured their software to allow it to open non-text attachments, and will accept non-text attachments from the list. Some lists have charters which prohibit the posting of attachments. Some lists are configured to reject postings with attachments. Some people will open attachments only from selected individuals; attachments from all other sources are deleted, unopened and unread. On Thu, 28 Jun 2001, Keller, Richard (CIT) <[log in to unmask]> wrote: > >I wonder if this is a problem with LISTSERV itself, or the way various mail >servers convert the messages during transmission. Any comments would be >helpful. > -- Paul Russell Senior System Administrator University of Notre Dame