I have problem with client apps like outlook, windows mail , thunderbird ,etc,
Web app mail working perfect , only in client apps doesnt works SOMETIMES
In my setup of mailcow on config, i set to skip_lets_encrypt to No,
The mail works for months now with that setup with no problem , now i notice that on cloudflarer must enable proxy and disable again, or must change the config of skip_lets_encrypt to yes , and after a few minutes working,
what exact happened hear? Its very annoying because i losing connection and isnt stable
have i something wrong on my configuration?