Hi for all, please pointing me how to create SSL certificate to use only on mail server (no web server presented).
The DNS is hosted on Cloudflare, the Certbot DNS request returned with “shilded” IP address, not with the real one.
Please help with your advice.
My operating system is (include version): Debian 8 x64
My web server is (include version): NO WEB SERVER
My hosting provider, if applicable, is: VPS
I can login to a root shell on my machine (yes or no, or I don’t know): YES
I’m using a control panel to manage my site (no, or provide the name and version of the control panel): NO PANEL