You can change the password for your email account from within the webmail client.
Note: You need to know your current password in order to change it from webmail. If you do not remember your password, please contact your IT admin to have it reset.
1. Login to your Webmail interface at https://webmail.yourdomain.com
2. In the upper right-hand side next to your username, click the drop-down to access the Settings menu
3. Click the Security option in the left-hand side and click on Change It Now.
If the Change Password menu does not show up, it is possible your admin disabled the option and you would need to contact them
4. Follow the prompts on screen, type your current and new passwords and click Save