Postfix throttling for outgoing messages

Posted by Sergey Kovalev on Server Fault See other posts from Server Fault or by Sergey Kovalev
Published on 2010-02-08T22:33:24Z Indexed on 2012/10/05 15:41 UTC
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postfix

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rate-limiting

I need Postfix to send outgoing messages (from local PHP) with a certain rate. Say, one message in 120 seconds. Any messages exceeding this rate should be queued (delayed) and delivered later.

Policyd is not what I'm looking for. I don't need limiting overall number of messages sent. I need a pause (120s) between any two messages beeing sent.

Tried this config, but it's not working:

initial_destination_concurrency = 1
default_destination_concurrency_limit = 1
default_destination_rate_delay = 120
default_destination_recipient_limit = 1
default_process_limit = 1

Any suggestions?

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