Jorgen Lundman:
> I have noticed that if I setup the L4 to just do the health-checks, but not
> pass through any emails, the amount of smtpd processes balloons to ~1000,
> then shrinks down to a stable ~400.
>
> They are all idle, waiting for a timeout. Presumably there is some process
> reuse in Postfix to save on the forks?
The Postfix process count corresponds to the number of client
sessions. If the number of processes goes up, either the number
of clients goes up or the sessions last longer, i.e. clients aren't
closing the connection. You would notice that from the "connection
timed out" events in the maillog file.
Wietse
