Michael Fox:
> http://www.postfix.org/postconf.5.html#smtpd_sasl_security_options says "the
> following security features are defined for the cyrus server .". Dovecot is
> not mentioned. So, is it correct to interpret this to mean that this
> postfix setting is a noop when dovecot is used for sasl authentication?
Hmm. that file hasn't been updated in a while. The list appears to
be the same for dovecot.
> And how does Postfix know which authentication mechanisms to offer the
> client? Does dovecot communicate this to postfix somehow?
Dovecot tells Postfix the supported mechanism names and their
security properties. Postfix intersects that with the main.cf
settings, and announces the mechanisms that remain.
Wietse
