If you don’t need a dedicated mailbox, just buy the domain from a provider like cloudflare or Google that supports email forwarding. Google forwards all emails to @mydomain to my Gmail account for free.

If you also need outgoing email, sign up for an SMTP relay. I use mailjet, and their free tier offers high enough limits for my personal use. Within Gmail, I added the SMTP settings from mailjet, and I can now send email from my custom email address by just selecting it in the compose page.

if you’re willing to pay, just get an email through microsoft, you’ll spend a lot of time and headache making a selfhosted email server work the right way consistently, it’s not a good choice for business/money making if that’s what this is for.

Zoho Mail

I feel most people agree that the one thing that is too much hassle to actually selfhost if you’re not really into it is hosting your on own mail, so if you’re up for it there are a lot if privacy respecting services out there that give you email (and calender, contacts, filesymc etc) for not too much money with your own domain. I’d probably have a look at Tuta or Mailbox.org first.

Get a cheap domain with hosted email from ionos.

skiff.com

Just to be clear, Google workspace does not offer a domain. What you want is a domain name and a hosted mail service.

If you would use Google workspace you would need that + the domain name.

So the pork bun email would be quite decent for 25 a year if it includes a domain name

just like u/NoPassion00 said,

Skiff.com

you get a domain, or multiple actually, with them. plus a bunch of other stuff. they are my new fav. email service. and they’re absolutely free.

definitely check them out you’ll be glad you did.