On 19 Oct 2020, at 04:28, Thomas Pronold <m...@tomgrill.de> wrote:
> The postfix image is configured in a way that certain IPs are allowed to send
> mails without authentication. So on postfix side I am set.
This is a *terrible* idea. ALL submissions outside of localhost (of the mail
server) to localdomains should be authenticated, you should never whitelist
your Eps as that just opens you put to abuse.
Yes, my system cron messages from all the non mail servers go to my mail server
over secure submission.
--
I want to die in my sleep like my grandfather did, not screaming in
terror like his passengers.
