Programmatic way to clean up 'crusty messages'?

Hi there,

I use a backup program called Retrospect to backup a SBS 2003 server and 
every night when we run our backup the same 30 messages in our Exchange 2003 
server cannot be backed up. They're almost all in the deleted items folders 
of our users.

Is there a programmatic way to delete these 'crusty' messages which for some 
reason Retrospect cannot access? or is there some way to make it so that 
they can be accessed? I believe that because some messages are not being 
backed up the store is not being marked as 'fully backed up' and as such the 
transaction logs aren't rotating taking up quite a bit of the ole disk 
space.

Thanks,
-Drew

Note that brick-level (mailbox-level) backups are decidedly not 
recommended - if you're having problems with this, you should take it up 
with the backup software manufacturer's support people. You should be doing 
an online backup of the stores which will purge the logs.

However, you may also wish to implement a mailbox management policy that 
empties everyone's deleted items folder anyway.. I suggest that you.warn 
people first, as some have a bad habit of using the deleted items folder as 
a temporary holding pen.