Hi, I'm fairly new to LISTSERV, but we have a mailing list up and running. I couldn't find my specific problem in the archives, so I hope someone can help. We would only like to allow the group to share PDF attachments, and I have tried the following two settings in the list header, neither of which worked: * Attachments= application/pdf,Filter and * Attachments= application/*pdf,Filter In both cases, the attachments were filtered, and only an attachment place- holder appeared in the post (e.g., <<TestPDFDoc.pdf>>). If anyone could specify an "allowed content type" for only allowing PDF attachments, I would appreciate the help. Thanks, Brian B.