I transferred my email setup once more. I don’t trust Zoho Mail. I experienced downtime with their service, it seems like there are issues with getting proper support, and privacy concerns as well.
I’m now on mailbox.org. They support custom domains, catch-all alias, plus-addressing, pretty much all I want. And they’re good for privacy. Plus they’re 100% powered by green energy. What more could you ask for? The pricing is decent as well.
The web interface looks basic and a bit outdated, but they have IMAP and SMTP support, so that’s not a problem. There’s also a full-blown office suite available, with calendar, contacts, and cloud storage. I haven’t used it yet. I might check it out sometime in the future.
If you’re not paying for the product, you are the product.