I am kind of in the same position. I have 4 people using our custom domain for email only given the pain google put on these accounts. They've each setup their custom domain email account to forward to their individual free gmail accounts. Does anyone have a recommendation for a new email service I can point my domain MX records at? I only need email forwarding for these 4 users using my domain and a catchall email forwarder for the rest.
I forward emails for custom domains from my registrars (Namecheap and GoDaddy) to Gmail. Then you can use a free Zoho account that lets you send email from your custom domain from within you Gmail account (sent via Zoho's email servers). It's a bit of work to set up but then you can do everything from within Gmail seamlessly.
I've been very happy with https://forwardemail.net but I'm planning to migrate over to Cloudflare's email forwarding service if it ever comes out of beta or I get accepted as a beta tester.
Some domain registrars provide this service for free.
I've always used a this setup, have my personal domain forward all mail to google, and I have my address with domain set up in gmail. Also, I think that's no longer an option - I realised a while ago, I couldn't add any more...
