Only allow login with the username/main address, not with every address.
Do not allow that you can log into the account with every address.
Perfect would be if you would have the choice what address can be used in order to log into your account.
With the current way you have to give away your login username in order to send emails. Hiding the username from the public would be an advantage, since they would have to guess your username and the password. Not only one of them.
The punisher commented
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Shreyas Purohit commented
I am not sure how much this helps. You have login password, then 2FA and then another mailbox password if you have it enabled. Its probably more useful to increase your password length by 5 characters than try to hide your email. Security by obscurity does not go a long way. I would rather see a feature that allows you to enter a second set of passwords that will open an virtual inbox with empty or some predefined emails which can be used in coerced situations.
Agree with the original poster: I'd like to see logins restricted to one's main email address, or to a username
Username should not be your email.. Look to what fencemail have done..
Eric Johnson commented
I do something like this on a company account hosted elsewhere. My primary username is a very obscure word. No email ever goes out with that username, but with the alias for the account.
My main reason for doing this is so that if I start getting lots of spam at that address, I can set up and start using a new alias for any new e-mail and set the old alias to only accept e-mail to those specific users I expect to get e-mail from.
Agree with Joel Drapper
Great solution if you want to separate your private and business lives!
It would be best to separate the login ID from the email address completely. Or allow that option for people who are especially concerned about hackers.
It would be even better if the feature is optional. Just confuse the heck out of anyone trying to hack in!
I'm with Joel. Usernames are part of your online identity and are not considered private.
Joel Drapper commented
This is such a minimal advantage, it would be a waste of time to develop. Adding one more character to your password would do so much more to improve your security.
So it will be impossibile to login with email address.