@iah Runbox is one of many email providers that I use. It's ok, but not stellar. I find it fairly stable, and like that there is a site I can check when there is downtime - and that site has an RSS feed, which is awesome.
I like the privacy aspect of Runbox, but since I have no contacts who use Runbox, that is kind of moot.
When something goes wrong, I would like Runbox to email users about it, before I spend ages trying to troubleshoot on my own. Runbox does not do that. So after doing a lot to work to get around a certain problem, I wrote to them and they said oh yes, known issue, here is what to do. They could have just told everybody that when they first discovered the problem! It would have saved me a lot of trouble.
Fosstodon is an English speaking Mastodon instance that is open to anyone who is interested in technology; particularly free & open source software.