Mail duplication

[JP Viljoen]

Hi all

I've had a few users complaining that they get mail multiple times (2 or more, 
average up to 40) when sent from certain people. All the senders in the 
building are generally using Outlook. Just want to hear if anyone on the 
lists has had similar issues, and/or possibly a resolution for the issue. I 
by nature can't think that it's the pieces of software the mailserver is 
built on (the Kolab stack), but since I know the previous administrators of 
this setup weren't very .. future-minded .. I wouldn't rule out the 
possibility. I have done some checking around every now and then when a user 
complains and I generally find that in the cases where users do report 
multiple mail, the maillog entries show a verbatim copy of the message-ID in 
each of maillog entries for the mail. Does anyone perhaps have an idea what 
could cause this? It's all just normal SMTP, no use of the Toltec connector, 
and everything in a LAN environment.

Regards
JP