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Maybe a postfix newbie question.

Our linux server is properly set up with an SPF record, and we don't send mass email at the moment. But, is there a simple way to configure the postfix mail queue, when it recieves a request to send 1000s of emails to send at 1 or 2 a second?

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2 Answers 2

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You need to tune default_destination_concurrency_limit and, possibly, per-transport concurrency limits, although defaults should work fine.

See documentation for details.

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You want something like this: postfix slow transport. You can set those options for the default transport (smtp) if you really want it to be for everything.

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  • Sorry, link no longer resolves. :(
    – tekHedd
    Nov 7, 2022 at 18:06

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