Zoho is ok... but is clunky, and they have slowly been removing useful features from their free plan (like IMAP support). They also limit the number of domains on the account.<p>But it is stable, and I haven't had any issues with email delivery or problems managing the calendar.<p>I ended up paying for Google workspaces, because I wanted a unified view of all of my email and domains.
Gmail still supports it for free, but the process is convoluted:<p><a href="https://paulonteri.com/thoughts/how-to/custom-domain-with-gmail" rel="nofollow">https://paulonteri.com/thoughts/how-to/custom-domain-with-gm...</a><p>If you're willing to pay, Fastmail offers a much better experience with custom domains.
I am using forwardemail.net, and that working fine for me, though there is a slightly delayed delivered, but I am ok with that, as I can do it all in gmail.