[Dovecot] dovecot + LDAP-SASL ?

Hi,

just a question:

I know that dovecot supports SASL authentication and supports LDAP. Which means that dovecot performs the SASL methods itself and stores the plaintext secret on LDAP.

But it is also possible to have the LDAP do the SASL work and dovecot just pass SASL messages through? Even when the LDAP server uses a proprietary SASL method not supported by dovecot?

regards Hadmut