On Fri, Sep 10, 2021 at 01:40:29PM +0200, natan wrote:
> I can not find in docu how postfix cached map (via default)
>
> example:
> I have "smtpd_sender_login_maps" - query in ldap
>
> What I can:
> - smtpd_sender_login_maps =
> proxy:ldap:/etc/postfix/ldap_sender_login_maps.cf
> - smtpd_sender_login_maps =
> memcache:/etc/postfix/memcache_sender_login_maps.cf
Why do you believe that caching is needed/useful?
> If i set only:
> smtpd_sender_login_maps=ldap:/etc/postfix/ldap_sender_login_maps.cf
> Does postfix somehow cache it ?
Largely no. A new internal internal interfaces (mostly transport
lookup) have a 1-element LRU cache, but otherwise all queries are
"fresh".
--
Viktor.
