--On Friday, June 10, 2016 09:04:07 PM +0000 ML mail <mlnos...@yahoo.com>
wrote:
Well right now I have max-children on 50, so you mean lowering this value
to something like 10? But then if I receive 20 simultaneous incoming SMTP
connection, what will happen to the 10 others?Will they fail/timeout or
simply wait?
You're going to have to check the spamassassin docs because I don't
recall offhand. Or test empirically. The idea, if you've got too
many simultaneous scans going on, is to reduce the number of scans
to something your machine can handle without tuning it so low that
mail starts getting rejected.
I use MailScanner as part of the mix so during bursts messages get
accepted into a disk queue and then scanned at a reasonable rate. As long
as the average scan rate exceeds the average receive rate, everything
is fine. What you're going to have to check, though, is if spamassassin
will queue things when it gets busy or if just doesn't accept the
connection.
If you tune things down and can't find a workable midpoint between
rejecting too much and thrashing your machine, it argues that you either
need a beefier machine or less processing per message.
Either way, trying random delays in smtpd doesn't feel like the right
answer.
Devin
