Niman,
One question - is there a way to change the subject which appears when
a message is rejected?
Yes.
In the Member Notices tab of your group's Settings page, create one or more of type "Rejected Message" - these become templates you can select from a drop-list to pre-fill that Rejection note.
But to the point, the Member Notice has a Subject field that is used for the outbound notice in place of the default Subject.
After you've selected one of the prepared notices you can edit the content of the Rejection box. I usually have a few prepared Notices to cover the most common reasons for rejecting a message. Those edits won't be sent, so I use that as a way to further customize the note to the case at hand.
It is a hidden and clumsy way to do it, and I've suggested (in beta) improving it so you can actually see / edit the Subject when working with the Rejection dialog, but it hasn't happened yet.
Shal
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