The ID of the item contains the Space "prefix" and this is one of the first things on the email subject. I haven't tried to set up e-mail rules and stuff yet, but this should be sufficient, I guess.
From: firstname.lastname@example.org on behalf of JTrac users mailing-list
Sent: Fri 11/24/2006 11:29 PM
Subject: [jtrac-users] Suggestion: email prefix per space
Currently there is a config setting which allows the sysadmin to set a
prefix which is added to the subject line of all system generated emails.
This parameter (mail.subject.prefix) is system-wide. Personally, I think it
would be handier if each space had its own prefix.
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