EV Journal Archiving Task Not Clearing all Messages

Hello,

I have two customers, one with EV 8.0.1 and one with EV 11.0.1.

At both custoers the Journal Archiving task is chugging along but in both cases there are thousands of times that are not being cleared from the journal mailbox.

I have run a trace and want to know what to look for for items that are failing to be archived. What strings can I search for in the log file?

Cheers,

Cameron