|Component:||Microsoft Exchange Message Transfer Agent|
|Message:||An interoperability error occurred. A reliable transport service element (RTSE) error occurred. The checkpoint size was exceeded by bytecount <value>. Current checkpoint size <value> KB. [<value> <value> <value> <value>] (14)|
The checkpoint size sets the amount of data to be transferred before a checkpoint is inserted. If an error occurs and the message data must be re-transferred, the process restarts from the most recent checkpoint. If you specify zero, no checkpoint is set. The default is 30. Checkpointing reduces transmission speed slightly and the checkpoint size should be decreased when the connection is less reliable.
Use Network Monitor to capture Network Traces, and then view these traces from Network Monitor for any network issue. Also, change the checkpoint size value.