MailScanner hangs once a day

[Sergio García]

Another important thing that I have forgotten is that MailScanner didn´t 
stop
netiher on Saturday nor on Sunday, but today (Monday) it has stopped
and I have had to restart it.

> Hello,
>
> I have installed MailScanner 4.54.6 with Postfix 2.3, SpamAssasin 3.1.3
> and ClamAV 0.88.4 in a Mail Gateway with Ubuntu 5.10.
> The problem is that MailScanner hangs once a day (always at 09.30-10.00)
> so I have to restart it  (/etc/init.d/mailscanner restart).
> I get the following info in the log ('mail.info'):