[rt-users] Throttling incoming e-mail

[Kevin White]

> If you change
> O DeliveryMode=background
> to
> O DeliveryMode=queued 
> in sendmail.cf, sendmail will queue all messages when received instead
> of starting a background delivery process for each.  However, then you
> move the problem to the queue runs - if you start them often enough to
> get timely delivery you may have several overlapping runs if they
> can't process the whole queue before the next one starts.  You might
> set sendmail's timer based runs to go less frequently and have a
> script that starts a run with only a short delay after the last one
> finishes.

Thanks!  We can try that.

The thing is, it should only be in pathological cases that I get this
many messages all at once: last time, I wrote a script that tried to
create about 70 tickets all at once.  I know better now, and in that
case, I'd put in a delay.  This time, it was a misconfigured process
that started sending 8*600 messages, once every 15 minutes, for 8 hours.
 :)  Pathological...but I'd like the box to live through it.

> You can also have sendmail queue only when the load reaches a certain
> level - and it can take the value in the Precedence: header into account
> when deciding when to queue.

Cool: I'll have to look into that.  That kind of sounds like what I
really want.

Thanks for the response.

Kevin

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