Proton has four different email domains that you can use to create email addresses:
- @proton.me is the default domain for Proton Mail: You’ll be asked to create a @proton.me address (email@example.com) when you sign up.
- @protonmail.com is an alternative domain that you can choose when you sign up or use to create additional addresses (firstname.lastname@example.org).
- @pm.me is our short domain: You can activate your short email address(new window) (email@example.com) after you’ve signed up — if your username is available.
- @protonmail.ch is our original Proton Mail domain: If you joined Proton before 2016, you have an additional free @protonmail.ch address (firstname.lastname@example.org).
If you have a paid Proton plan, you can create additional addresses (aliases) using any Proton domain above or your own custom domain(new window) (@yourdomain.com).