Viktor Dukhovni:
> On Tue, Apr 22, 2014 at 11:10:50AM -0400, Wietse Venema wrote:
>
> > - The problem with per-domain in-memory counters is that they can
> > use up a lot of memory especially with sender domains.
>
> If the RED policy for probes were in the queue manager (I know
> that's a pain) then the memory for counters would be limited by
> the size of the active queue. And the limits would be recovered
> automatically when the queue manager is re-started (infrequently).
The correct solution prevents excess probes from entering the mail
queue.
I think that the disadvantage of a global-only limit is overstated
because the Original Poster does not understand how Postfix works.
A global limit on the number of pending probes affects only unknown
email addresses. Postfix proactively refreshes known email addresses
well before they expire. I am not an idiot.
Wietse
