[miedpo]

I'm not sure if this fits your needs or not, but have you considered self hosting with Cloudron? Free plan would work for you so you'd only be paying for the VPS.

It makes administrating and backing up an email server a breeze. Only real requirement is that you have your own domain name, and know how to generate API keys for a few services (really easy). Helps ensure you have all the important mail settings (SPF, DMARC, etc) set up.

I use BuyVM for the VPS because I can set up one of the mail settings, but you could easily use another provider (Hetzner might be good if you need a lot of space).

Also... you could host Nextcloud and OnlyOffice on the Cloudron box under the free plan as well... which is pretty much like hosting One Drive and Microsoft 365. A little more complexity to manage, but still very easy.

Now one thing to keep in mind... you still have a single point of failure in your domain name provider. It they don't act responsibly, there's not much you can do.

[nativeit]

Friends don't let friends self-host email servers.