I have a user who is getting "Local Failure Notice" emails generated by the outlook connector, about 8-10 times a day

The body of these emails has something like:

id (56200) type(message) message(Convert() - mime to mapi conversion returned partial completion. hr = 263808)

and there is a sync_message.mime attachment that contains the raw email.

There are also several cases where they are seeing the raw email in the body of the message, including the full message headers, and because it's the raw email it can be very hard for them to read because HTML is not being converted to its pretty happy state.

Has anyone seen this?