This would improve account security. Really critical. I use a custom domain address alongside my primary Proton Mail address (you can see Proton stuff in DNS MX record). Every time I give my own professional email address away, I increase a change that it will used to for trying to hack into my Proton account. Same goes with pm.me address. I come from Outlook and in Outlook it was possible to deny login for other mail address. I used to have a policy not to share my login address with anyone, so login account was never used as email address. I would very much like to see that same possibility with Proton. Some kind of proton user ID (not mail) would be the option for logins.
It would be very useful to have a separate “disable login” toggle (or the ability to mark an address as “login‑only off”) so the address can remain fully functional for email while never being usable for authentication. (Proton Unlimited user)
Juhis
This would improve account security. Really critical. I use a custom domain address alongside my primary Proton Mail address (you can see Proton stuff in DNS MX record). Every time I give my own professional email address away, I increase a change that it will used to for trying to hack into my Proton account. Same goes with pm.me address. I come from Outlook and in Outlook it was possible to deny login for other mail address. I used to have a policy not to share my login address with anyone, so login account was never used as email address. I would very much like to see that same possibility with Proton. Some kind of proton user ID (not mail) would be the option for logins.
It would be very useful to have a separate “disable login” toggle (or the ability to mark an address as “login‑only off”) so the address can remain fully functional for email while never being usable for authentication. (Proton Unlimited user)