If you are a Webeze client and we initially helped you set up your email account, please submit a support ticket and we will do our best to assist you. The best way, however, is for you to login to your hosting account and RESET your password. When doing this, please do not make the mistake of resetting your SFTP account and MySQL passwords by accident. If you change the MySQL password, there's a good chance much of your site will not work (and we won't know about it unless you contact us).
It's a good idea to keep your passwords in a safe yet accessible place. Please read this article on passwords to learn more about this topic.