Ok, it works but i don't understand, i've created a user with saslpasswd2 and put permit_sasl_authenticated in smtpd_recipient_restrictions of main.cf ...
postfix authenticates the user even if the saslauthd daemon is stopped!
I've read this tutorial (http://postfix.state-of-mind.de/patr...iguration.html
) but i don't understand this line:
If you plan to use sasldb instead of saslauthd on your system then you should make sure the daemon will not get started automatically when you system enters the different runlevels or when you reboot. So you either disable the daemon or remove it completely.