>..... > > You can test this by temporarily removing permit_sasl_authenticated from > smtpd_recipient_restrictions in main.cf and attempting to relay a > message to an external domain as an authenticated user via the > submission port. With your current settings, the message should be > rejected (unless permitted by something else, like mynetworks). If > you're never going to disallow submission on port 25, don't worry about > it. As always, YMMV depending on your configuration.
Actually I'm thinking about disallowing submission on port 25 once our users will have used the submission port for some time. Thank you for the suggestion. Regards, Gaël
