There is no reset email. Someone with admin rights sets a new one for you — here is who to ask.
If you are staff
Ask an admin to set a new password for your email address. Change it to something only you know as soon as you are back in — that also signs out every other device.
If you are an agent
Ask the office to set a new 4-digit PIN against your phone number. Your number does not change.
If it just said your account is locked
Nobody needs to do anything. 5 wrong attempts lock sign-in for 15 minutes, and it clears on its own — if you remember the password, waiting is the whole fix.