* * * * *
The email situation has been solved
I finally solved the email issue on my server [1]—the physical host was NAT
(Network Address Translation) [2]ing connections from my virtual server.
There's no need for that. Once the bypass for the NAT (Network Address
Translation) was added, outgoing packets were finally coming from my server's
IP (Internet Protocol) address.
[1]
gopher://gopher.conman.org/0Phlog:2020/05/16.1
[2]
https://en.wikipedia.org/wiki/Network_address_translation
Email author at
[email protected]