Settings for email logins and access to functionality in edge are in the Setup area.
Can I unlock users who are locked out?
Currently locked out users are listed with tickboxes beside them. The quick way to select all users at the same time is to tick in the heading line so all user names will be selected.
Click 'Unlock selected user(s)' to effect this at once.
For unlocking one user at a time, tick the box beside the user then 'unlock' on the right side.