Wagner, Patrick:
> > The STRESS warning is logged at 1000-second intervals. All this is
> > done to avoid spamming the logfile and flapping the service as the
> > load fluctuates.
>
> Here I'm grepping for STRESS, as you've suggested in your first mail, in
> the same maillog I took my example mailflow from, and getting only two
> log entries 6 seconds apart:
>
> # zgrep STRESS /var/log/maillog-20161211.gz
> Dec 10 09:42:47 mx10 postfix/postscreen[1186]: entering STRESS mode with
> 90 connections
> Dec 10 09:42:53 mx10 postfix/postscreen[1186]: leaving STRESS mode with
> 70 connections
postscreen does not trigger address verify requests, and is therefore
not relevant for this thread. The code fragment that I showed detects
overload for smtpd, the service that makes address verification requests.
Wietse