Change the password on your Bellsouth email account. By Using a smartphone, tablet, or computer, change your email password. Learn how to change the password on your email account or to change Bellsouth email password reset phone number We recommend that you change your password frequently and use a different one each time for maximum protection. Change your login password by going to Profile > Change Login Password. Fill in your password information and save it. When the password change is complete, you will receive a confirmation email in your inbox. The new password may take up to five minutes to take effect.