On Sat, 2007-01-27 at 15:08 +0300, George Moury wrote:

I need use different auth mechanisms for different IP-address of IMAP/SMTP SASL clients (allow plain authorisation only for my own network), but there is no examples at wiki.dovecot.org for this feature.

It's possible to use something like this in SQL passdb's password_query:

select user, password from users where mech = '%m' and ip = '%r';

You can probably change that ip = '%r' check to some network check, at least with PostgreSQL.

Anyway, if you want the CAPABILITY to list different AUTH=nnn for different IPs, then that isn't possible currently without modifying the sources.