On 2022-05-05 19:41, Matus UHLAR - fantomas wrote:
non-existing and unknown addresses can hardly be listed in
smtpd_sender_login_maps so I can't exactly see how they are protected.
(and RTFS didn't help me)
envelope senders can be rejected on port 25 if its local recipients
that is policy, becurse local senders will not use port 25
other unknown envelope senders can not be rejected as forged without
using spf
hope this clear it, mail from: can not be ensured to be non forged by
sasl auth, without a milter to protect this policy, if postfix can do
this aswell i like to know aswell