[Dovecot] auth_cache question

[Robert Schetterer]

Hi , just to make clear
short question does auth_cache... help with downing sql lookups
http://wiki2.dovecot.org/Authentication/Caching
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
-- 
Best Regards

MfG Robert Schetterer

Germany/Munich/Bavaria