Re: Receiving emails from my own address

[Benny Pedersen]

Rafael Azevedo skrev den 2020-11-06 13:48:

Checking server logs, user is not authenticating and the only way this
spammer can play a trick is by sending an email to its own address
(ie: from raf...@mydomain.com to raf...@mydomain.com).
Is there a way to avoid this practice ?

thats what SPF is designed for

without SPF, do not accept local domains as envelope sender on port 25, 
when this is solved it stops

more help show logs
and postconf -nf