I am using Zoho for serious stuff that needs (mail server) redundancy and for everything else I am self-hosting Postfix + Dovecot + Roundcube.

I am using Zoho Mail and at this point, I almost don’t wanna know what they swept under the rug. I mean, I already have my own SMTP server, which I am using for all but 1 domain, for important stuff I have Zoho Mail. Now, if it really comes to it, I am at least ready to fully self host.