On Feb 17, 2010, at 3:41, Jost Krieger wrote: > 1. How many SMTP sessions can be expected on commodity hardware under > Linux (RedHat), with prefork?
If you don't do any heavy processing (spamassassin or virus scanning basically) then ~20/second (or whatever a million day works out to when your server is busiest) shouldn't be a problem. If you do spamassassin and such, that will be the resource intensive part. qpsmtpd might help over other MTAs though in filtering more of the mail in cheaper ways first. > 2. How fast is this (I've read Chris Lewis saying 300 sessions/sec)? That doesn't sound unreasonable, but as soon as you add the spam filtering it goes down -- imagine even just 5 DNS lookups for blacklists and such and now you're also doing 1500 DNS lookups a second. [...] > 4. Is this the right place for bug reports about included plugins? Yup! Best form of bug reports are fixes in your github repository though. We also have a little-used bug tracker at http://code.google.com/p/smtpd/issues/list - ask
