John Fawcett via Postfix-users skrev den 2026-03-26 15:44:
In general no, but the distinction could be made based on a sender present in smtpd_sender_login_maps. It would need a new configuration parameter to be able to reject mail from an unauthenticated sender where authentication is not enabled.
reject own sender domains in port 25 envelope is safe, if you never use port 25 with sasl auth
why is this really a question ? bots that try sasl port 25 can be reported to abuseipdb with fail2ban _______________________________________________ Postfix-users mailing list -- [email protected] To unsubscribe send an email to [email protected]
