[SM-USERS] Error message displayed when deleting email messages

[<kf...@si...>]

I have been getting the following message when I try to delete selected
email messages (my trash folder is empty by the way):

ERROR : Could not complete request.
Query: COPY 2478 "trash"
Reason Given: UID COPY failed: Message copy failed: Disk quota exceeded

I hav no idea what this means--any suggestions?

Kari