To Be Delivered Status for AS2 messages

Hi Experts,

We have an issue with the EDI messages that are sent out of XI through AS2 Adapter. The messages were going out successfully till yesterday. From yesterday onwards, we see the messages under To Be Delivered Status in the Message Monitoring of Adapter Engine messages in RWB.

We have restarted the J2EE engine and it doesn't help.

The Service is not EOIO and hence the question of QUEUEs doesn't arise.

Did anyone ever face such an issue? Please help.

Regards,

Ravi Kanth