Re: 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:	Re: feedback request: scheduled delivery of messages
Group:	Postfix-users
From:	Victor Duchovni
Date:	14 Jan 2008

On Mon, Jan 14, 2008 at 09:09:56AM -0500, Justin McAleer wrote:

> 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.

Have you considered the "at" command?

at 1pm <<'AT-ochC3f6Uhoa6OZxVpgBD'
sendmail -f "$sender" -it <<'MSG-ar20iQmv9/aRhn2fJ4XB'
... message_content ...
MSG-ar20iQmv9/aRhn2fJ4XB
AT-ochC3f6Uhoa6OZxVpgBD

the random tails of the two "here document" delimeters were generated with:

openssl rand-base64 15

--
Viktor.

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