I have a Nokia 6120C here that is set up with Mail for Exchange.
Sometimes it send me text messages, usually with meeting reminders. But some of the meetings haven't even been set by me!

The messages come into my SMS inbox, and are from +502.

502+ isn't a short text code or anything. Number doesn't exist.
As far as I can see there are no options to receive alerts via text.

Anyone run into this before?