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From: Victor Duchovni (Victor.DuchovniMorganStanley.com)
Date: Fri Jul 13 2007 - 16:02:28 CDT
On Fri, Jul 13, 2007 at 03:26:24PM -0500, joseph kacmarcik wrote:
> >Maybe it's possible to QUEUE mail at specific times (using cron)
> >and then have Postfix deliver it immediately.
> for example, i'll be generating mail early mornings for delivery later
> in the day. we want to deliver mail from the same campaign to EST folks
> at 9am EST, CST folks at 9am CST, and so on. generating the mail for
> different timezones independently is much heavier than the potential of
> using specific queues or instances. the FILTER header_check is
> wonderfully easy in sending mail to dedicated clusters or instances.
The best way to delay mail for specific recipients is to route it using
per-user transport tables to a second Postfix instance that holds all
mail in a queue dedicated for that type of user. Doing this within a
single instance is overly complex and fragile.
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