Hi, today i tried to install and configure a mailcow server on Digital Ocean, where port 25 its closed, but our intention it
s to use relay servers for communications. We manage DNS records on Cloudflare, and the entries we added were the A record and the MX record,and also configured the reverse dns. When we tried to obtain the certs for admin webpage and the rest of the services we got this : rror response from daemon: driver failed programming external connectivity on endpoint mailcowdockerized-postfix-mailcow-1 (63e3b01d933ccb6c975b86831a421bafc418ecf6cf80b2e51803a0c2f97e7a21): failed to bind port 0.0.0.0:25/tcp: Error starting userland proxy: listen tcp4 0.0.0.0:25: bind: address already in use
, even if we disabled all the checks from mailcow.conf, and no lets encrypt cert it
s generated or attached, the cert loaded it`s the self signed one.