Normally - the problem is at the senders end, not the recipient. Normally - the problem occurs with the sender using RTF in Outlook. http://support.microsoft.com/kb/278061 I have seen Outlook change the default from Word to RTF. Don Bosman Information Technologist MSU Libraries 366 W. Circle Drive - Rm.W441 East Lansing, MI 48824-1048 517-884-0873 From: Al Puzzuoli [mailto:[log in to unmask]] Sent: Thursday, May 01, 2014 4:09 PM To: [log in to unmask] Subject: [MSUNAG] MSU Webmail and Outlook Invite Oddities? Hi, I'm trying to understand how the MSU webmail handles calendar invites sent from Outlook. We have a situation where some people are able to read invites just fine, while others just receive a blank message with a winmail.dat. The truly odd thing is the behavior seems to vary based on something in the recipient's webmail settings. I just tested this with a student. Sent him an invite, and all he got was a winmail.dat. Then, I sent an invite to a departmental netID that we used, logged into mail.msu.edu, and was able to see the text of the invite. Any ideas as to what the variable here might be? Thanks, Al Puzzuoli Information Technologist Michigan State University, Resource Center for Persons with Disabilities, 120 Bessey Hall East Lansing, MI 48824-1033 517-884-1915 http://www.rcpd.msu.edu