This is a warning message and the source is Blackberry Messaging. It is then followed by the same type of warning only the source is then Exchange Connector.
The blackberry user has stopped receiving email. I can go into the Blackberry manager and send a message but it only sends to the users mailbox and no their handheld.
This is a standalone BES and it's connected to an SBS 2003 server and running Exchange 2003.