FamilyHistoryMail locks you out after repeated attempts to sign in with an invalid email address or password.
FamilyHistoryMail locks a FamilySearch center account if you do not access it at least monthly.
To get a FamilySearch center FamilyHistoryMail account reset (unlocked), the Stake Temple and Family History Consultant—Family History center needs to contact the Global Service Department at 1-855-537-4357.