Items in J2 queue  - purge?
I am fighting an issue with Journal Archiving. Databases have been checked, as has access to systemmailboxes, journalmailboxes etc.
I have large MSMQ's mainly J2 (some are over 70.000 items) Several queues have items with value . I recall from previous forum posts by others that this indicates the original action failed, and that this is a retry. I also recall it can go to , and then  before being disregarded.
Can these items be manually purged? Or does tha have an unwanted side-effect?