[Dovecot] auth_cache question

[Timo Sirainen]

On Fri, 2011-06-10 at 10:08 +0200, Robert Schetterer wrote:
> Hi , just to make clear
> short question does auth_cache... help with downing sql lookups
> http://wiki2.dovecot.org/Authentication/Caching

Sure, that's what it was built for.

> isnt clear to me for sql to me
> if yes
> are there real world recommanded settings
> lets say for a 5000 users server and where password changes should be
> noticed asap

If you want to be absolutely sure that password changes are noticed
immediately, disable negative caching.