If there is something wrong with the way anti-virus has been integrated with Scalix's
Service Router, then messages are moved to the ERROR queue.
The reason for this is that it is seen as being dangerous to deliver mail which might contain viruses and also, this should make it clear that there is a problem with the setup, where silently delivering mail would not.
omshowlog output might help to diagnose why anti-virus integration isn't working.
Once it is working, you can resubmit all the messages on the error queue using :
Regards,
Gren