ProtonMail doesn't provide the option to recover a deleted account. Even if you’ve deleted it accidentally, you cannot recover it. And, ProtonMail does not reuse the usernames. This means the same username, even if it is deleted, will not be available in the future.If you are going to use ProtonMail again, you can follow our instructions to recover deleted ProtonMail account
ProtonMail doesn’t have access to any of the user’s passwords, so it is not possible for ProtonMail to reset it for you if you have forgotten your password.So, you need to set a way to recover your account. If you don't do so, you will lose all access to your account, emails, contacts, and other files.As said above, there are no ways to recover your deleted ProtonMail account, so we will tell you how to recover your ProtonMail account if you have forgotten the password.
There are three different methods to reset your password.
If you have provided a recovery email address, ProtonMail will send a message to that email address so that you can reset your ProtonMail account password
If you've given the recovery phone number, ProtonMail will send a text to reset your password.
If you've given the recovery phone number, ProtonMail will send a text to reset your password
If you have enabled the recovery phrase option, you can enter your 12-word phrase and reset your password.
So, that’s all! If you have other mail related queries like recover deleted protonmail account, you can call us directly for better assistance.