We have recently upgraded to Exchange Server 2003 from 5.5. I now have a couple of users that receive complaints from people they are sending to that the messages are blank. A couple of interesting tidbits:
- The messages in the user's outbox are complete - i.e. they are not blank
- If the recipient looks at the message in Outlook the messages are blank but if they use a web client the full text of the message is there.
- I should also mention that this never happens to internal recipients - only those outside the company.
- I tried setting one of the user's Outlook clients to only send in plain text - didn't make a difference.
The fact that it only happens to a couple of users and not to all of their messages makes this one hard to figure out.