Option to permanently delete (unlink) aliases from ProtonMail account.
To protect ProtonMail user privacy and anonymity, we need an option to permanently unlink (delete) aliases from ProtonMail accounts.
Address counter can stay incremented, but the deleted identity (alias) should not be linked to the main account any more. Unlinked e-mail address should stay permanently disabled to prevent address recycling.
A 7, 14 or 30 day deletion waiting time can be implemented to prevent spammers from abusing ProtonMail aliases.