Resolved Port 25 closed cannot send email

[KirkM]

Now, in 2024, I phoned ionos, got through in seconds, told the support engineer what I wanted, and he enabled port 25 outgoing straight away. It was working before I even hung up the phone. Perhaps you get a better class of engineer at the weekend.

Result

Only 5 years to get tech support up to speed with this simple task. Terrific.