feedback request: scheduled delivery of messages

4 msg	nested_header_checks
10 msg	Hotmail Problem

feedback request: scheduled delivery of messages
\ Justin McAleer (14 Jan 2008)
. \ Sandy Drobic (14 Jan 2008)
. . \ Justin McAleer (14 Jan 2008)
. \ Victor Duchovni (14 Jan 2008)

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Subject:	feedback request: scheduled delivery of messages
Group:	Postfix-users
From:	Justin McAleer
Date:	14 Jan 2008

List, I'm looking for feedback or ideas regarding the following problem.
I have been tasked with developing a way to schedule message delivery
for future time in our webmail client. We use Squirrelmail (SQM
hereafter), and it sends mail via our outbound Postfix servers (smtp auth).

My initial idea was to have SQM add some custom header with the desired
delivery time. I then use header_checks on the postfix servers to look
for such a header, and if found, put the message on hold. A perl script
would run via cron every so often, reading through the hold queue
looking for the custom header, and when it's time for delivery, execute
postsuper -r to requeue the message.

Should that work out? Thanks for any help.