From: Ron E. (reethunderstar.net)
Date: Tue Jun 01 2004 - 13:47:55 CDT

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Dear All,

I'm wondering if someone already knows how to do this or has thought of
it. I have run into a situation where occasionally I'll have a user that
sends out of a lot of mail such as a newsletter to a bunch of subscribers
or some such. Bounces inevitably occur after such a mailing and
postfix inevitably gets backlogged.

My idea for this is some type of separate queue where mail inbound for a
certain list of addresses gets "low priority" and as such is put aside in
favor of all the other traffic until the server is not as busy.

Would be interested in any thoughts on how to do this.

Note that I am using postfix in conjunction with MailScanner
(www.mailscanner.info) and so postfix is configured to put all messages
into the deferred queue, where mailscanner picks up the messages from.
This is where the backlog accumulates. Ideally if there is a way postfix
can be configured with another "low priority" queue directory which it
processes and moves into deferred only when the system is not busy and the
deferred queue has less than "X" number of messages waiting or some such.

I've looked through various docs and FAQs and not found anything in
relation to this.

Regards,

Ron

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