Impossible to add custom domain to installation

[nadertech22]

I'm unable to add custom domain to installation, the mail server domain feature works fine, but installation url is only accessible via IP with /access_point --> example: IP:/kcslz98

When creating A record in Cloudflare and pointing it to server IP, and try to access site via domain i get "Not found" blank page.

Why such complication for a simple feature? Please allow custom domain insertion on settings page, otherwise this is useless and not safe to use if we have to expose server IP for access.

[dreambladeflag]

You must visit your_domain:port/kcslz98 again and you can access other pages. This is created by security.

[i-santosh]

Although, i tried to add custom domain to installation server, points mail-server.example.com to ip, and visiting to https://mail-server.example.com/<entry_code> (kcslz98) shows the login page, but there is CORS Missing Allow Origin error.