[Samon]

Another very happy (paying) customer of ImprovMX here. I have a dozen or so domains for family and friends configured this way, using ImprovMX for both inbound MX and outbound SMTP (using Gmail as the 'front end' mailbox, but using the custom domain/addresses everywhere).

I too gave up self hosting this all a few years ago - especially when hosting domains for others (family) who aren't tech savvy, I got sick of having to troubleshoot why their emails weren't being delivered. Outsourcing the delivery component to ImprovMX and the mail storage and even inbound spam filtering to Gmail, made things so much easier, even if it does mean relying on a centralised party like ImprovMX.

[Daegalus]

Well I'm slowly seeing competitors a alternatives pop up, so if it falls apart, we might have places to go. Even Cloudflare now offers a similar service. Minus the SMTP part.