[Exim] Exim processing one message on three processes?

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Author: Dan Egli
Date:  
To: exim-users
Subject: [Exim] Exim processing one message on three processes?
This seems rather bizare to me. Perhaps it's normal.

I was watching the mails go out of the server  as I accasionally do, when I
noticed that there were three different exim processes working on the same
message ID.
 4661 ?        S      0:00 /usr/sbin/exim -Mc 15a04m-0001BT-00
 4664 ?        S      0:00 /usr/sbin/exim -Mc 15a04m-0001BT-00
 4662 ?        S      0:11 /usr/sbin/exim -Mc 15a04m-0001BT-00



This seems really strange. I looked at the message and it was a large
attachment from one user on my machine to another user on the same machine.

Shouldn't exim just read the message and send to local delivery? why the
three processes?