We've been having a chat about how useful it would be to have timed actions in sieve: so that a vacation message could be set up for a duration which would automatically revert, so that a forwarding could be set up for the duration of a short-term project, etc, etc. The naive way is to add support to the sieve interface of choice (the squirrelmail plugin in our case) to handle deferred actions, but I can think of all sorts of security problems with that. Another would be a means to auto-generate regexps to match on Date: headers, but that's really tacky. The full solution would be to have the current time available in sieve scripts, to then match on. Has anyone else thought about this area?
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