Hello!
I made a proxy for my mail server using a $5 VPS per month. My problem is that in my logs and antispam, I can’t see the sender’s or receiver’s real IP—only the IP of my proxy.
I tried to enable the PROXY protocol v2 several times but never succeeded after 3 attempts.
If anyone has a hint or wants to help, you’re very welcome!
Many thanks to all the people helping me.