On Tue, 21 Oct 2003, Simon Byrnand wrote:
> Since I use sendmail, which unfortunately doesn't have a proper way to > limit local delivery concurancy, I'm now using a combination approach - I > use -m 15, and return EX_TEMPFAIL for more than 40 simultaneous local > delivery processes.
When sendmail is used with a milter interface to spamd, the MaxDaemonChildren option works beautifully to control concurancy loading.
Yep, it also works beautifully to block incomming connections when the server gets a bit busy, which isn't pratical if the same server is incomming and outgoing ;-) (Customers can't relay their outgoing mail intermitantly when spammers decide now is a good time to do an incomming spam run....)
If you insist upon using procmail to do the filtering, MaxDaemonChildren may work if your config is set to single-threaded delivery mode (IE no 'm' in the mailer flag).
I imagine it would, however single threaded delivery mode just isn't an option for any kind of real world use. Until such time as sendmail implements a *proper* local delivery concurency setting, my method works very well...
Regards, Simon
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