On 11/28/2014 11:41 AM, Viktor Dukhovni wrote: > On Fri, Nov 28, 2014 at 11:34:54AM -0500, Raman Gupta wrote: > >> The default setting of unknown_address_reject_code is 450 >> (http://www.postfix.org/postconf.5.html#unknown_address_reject_code). > > Once your system is correctly configured, by all means change it > to 550. The default is a safety measure for new users. I have: > > unknown_address_reject_code = 550 > unknown_client_reject_code = 550 > unknown_hostname_reject_code = 550 > unverified_recipient_reject_code = 550 > unverified_sender_reject_code = 550 > > You can in most cases leave > > plaintext_reject_code = 450 > > at its default. Whether to make a 5XX depends on whether and > how you're using reject_plaintext_session.
Thank you! I was hesitant because in some cases the docs state that explicitly (e.g. unverified_sender_reject_code states "change into 550 when you are confident that it is safe to do so") but I could not find any similar advice for unknown_address_reject_code. Regards, Raman
