Exchange 2003 SP1 - my mailbox size limit check runs once a week on Sundays at 11am EST. Yesterday 2 of my users (only 2 so far) located on different servers in different time zones in the US reported that they received the 'Over your limit' message in Japanese. These are long time users and they are not set to work in Japanese. Any idea what might be causing this?

update on this issue: I've reseached this further and found thhat on just one of my server of the 196 users that would have received notification that their mailbox was over the limit...65 of them got the message in Japanese....looking back to the last message they received a week ago, they are in English as they should be.... and this is only one of my 10 servers I've checked so far......