Re: Throttling mail sending in Postfix

Dave Hall wrote:
> On Tue, Nov 28, 2006 at 11:21:14AM -0600, Les Klassen Hamm wrote:
>> I have a client that needs to send some bulk email (no really, they are
>> not spammers, it's a legitimate research contract) but the software that
>> generates the mail just blasts everything to the smtp server (no
>> batching, timing, throttling).
>>
>> Is there any reasonable way in postfix to slow down, batch or throttle
>> the outgoing mail. I can find a transport setting about concurrency, but
>> I'm hoping for some better tuning options. Any ideas?
>
> Are all/most of the recipients at the same domain? If not, I wouldn't
> worry. A few messages at once to different recipients is not unusual,
> especially from mailing lists (like yahoo groups).

The sample size is really quite large, so some domains may get in the
order of a few hundred. We've set up some of the rate limiting stuff in
a hastily installed and configured postfix setup, and at this point they
will hope for the best (there are some tight deadline issues). I'm
counting on the postfix defaults to be reasonable until I get a chance
to get back in there and go over the details more carefully. It should
only be relaying for the localhost.

Thanks for the feedback.
        Les...

> If the receiving server tar-pits you, that will just slow you down at the
> reveivers discretion. Basically the same effect as you're asking for.
>
Received on Tue Nov 28 22:26:43 2006