What you just described is called cooking.

At the rate the UK is going it won’t be long before there is no northern Ireland, and just Ireland

The United kingdom of great Britain and ireland, there are always exceptions

I’ll counter the other comments. It’s not any more difficult to maintain than any other service. What is a pain is the spam, and as I run it for a business the users. The biggest problem I have is other mail servers been incorrectly configured for SPF, DKIM and dmarc , usually it’s things like external billing platforms that have been integrated incorrectly by customers and suppliers. Spam is now starting to come though with all the proper headers for SPF and DKIM

Trickle, never used it but seen it mentioned a few times

In the UK at my kids school, yes. No jewelry of any kind allowed. Not even studs in newly pierced ears, which is a bit annoying.

Looks more like an orc, maybe it’s the goblins boss