If you are not the administrator of the domain or if you don’t
know how to use cpanel, you have the following option:
By typing into your browser
http://www.yourdomain.com/webmail a window will appear
asking for your username and password. Use your email
address as username (exp: office@yourdomain.com) and
then type your password in the reserved field. Upon
validation you will be taken to a page that displays three
different email clients. Below the icons that represent the
email clients you will find a text link: Change Password.
Follow this link in order to change your password.