29 Jul
2025
29 Jul
'25
12:54 a.m.
- roughnecks via dovecot:
It would be nice if said account was not able to receive emails anymore, or "better", until it was re-enabled. Would also be cool if the sender received a warning back, upon the failed dispatch. [...]
Given that you are using Postfix, employing its recipient address verification [1] mechanism is one possible method to achieve your goal.
[1] https://www.postfix.org/ADDRESS_VERIFICATION_README.html
Postfix can respond with a 4xx status code ("retry later") for certain recipients of your choosing, leaving the sender to decide if/when they want to reconnect at a later time.
-Ralph