@dentangle@chaos.social Some arguments can be made about not dogfooding your own website, but the ticket systems for a lot of providers directly integrate with their e-mail system and so an outage of the e-mail system would also affect ability to communicate with customers *directly*. Plus if e-mail isn't your core business, there's deliverability to worry about.
I'm sure other architectural choices are a possibility, just trying to illustrate reasons why one might decide to host their e-mail off site that aren't just "lack of confidence".
None of that excuses the Cloudflare part, of course.