[Exim] Exim suddenly delivers every mail 3 times

Hi,

I have exim 3.16 set up on a medium-sized network and so far everything
worked fine.

But without changing any configuration, after a while of working just
fine, exim suddenly started to deliver mails 3 times to the same account.

This error is not reproducable on other accounts, although I've copied the
.forward:
bergerm@papa
"| /usr/local/bin/procmail"

and the .procmailrc file (which has no deliveries to the mailbox)

the part in the configurare file is

local_delivery:
driver = appendfile
file = /var/mail/${local_part}
delivery_date_add
envelope_to_add
return_path_add

The mailbox file where the error occures is quite large (16MB) but has
only a few mails in it ( 27 mails, should be 9 ), so this could be a
problem with large mails (?)

Here are my questions:
- Why do I get every mail 3 times?
- How do I stop it?


If you need more information, I am certainly willing to give you any
information that won't compromise security

Thanks for any help!

mfG

Max Berger
e-mail: max.berger@???

-- 
XSLT:     http://www.xslt.de/         ACPI4Linux: http://phobos.fs.tum.de/acpi/ 
FBR-Info: http://www.fs.tum.de/FSMPI/ Sysop:      http://wwwbrauer.in.tum.de/
9CF77B603671BB18 D5110085483230BB ftp://phobos.fs.tum.de/pub/pgp/max.berger.asc