It also doesn't support custom domains, just @hey.com addresses: > Can I use my own custom domain with HEY? > Not yet, but eventually you’ll be able to set up

It also doesn't support custom domains, just @hey.com addresses: > Can I use my own custom domain with HEY? > Not yet, but eventually you’ll be able to set up email@yourdomain.com. Until then, everyone who uses HEY will get a @hey.com email address.