[scaryclam]

The kinds of messages that get sent via email or text are usually pretty unimportant. Important things tend to be sent via letter or a phone call.

It's not likely to be anything critical.

[jamessb]

Gov.Uk Notify does support sending letters (as well as email and SMs/text messages): https://www.notifications.service.gov.uk/using-notify

[vindex10]

In Norway, I received my residence permit by email, and I mean the official document.

I stressed a bit when after a year I was trying to find the paper letter, until I eventually realized xD