As always, folks on this list are amazingly helpful. Any other
thoughts, anyone?
We went through this debate a few years ago, the outcome we came up with was:
* Allow JPEG and JPG attachments only
* Allow HTML
Later LISTSERV versions understand JPG and HTML correctly and digests and attachments are stripped leaving readable plain text. The earlier versions show the encoded gibberish in the digest.
The Word HTML issue isn't as prevalant at home as it can be in corporates, and Outlook since 2007 doesn't default to using Word as an editor anymore.
As always, it will depend on your specific user community.