Mailscanner hangs after a while

[Peter Russell]

> 
> I recently recognized that, Mailscanner works well for a while, and then
> does not scan the mails in the queue.  After I restart the mailscanner, it
> works well again for a while.  There is nothing related to this in the log
> files. Everything seems to be working without errors.

The exact same thing happens to me all the time. I kinda gave up trying 
to troubleshoot it because it so disruptive and cron a service restart. 
Not a very graceful solution...but a necessary one.