Passwords for the Hosted Exchange 2013 platform are managed through the Cobweb Control Panel.
If you know the existing password for the account, you can change this as a user. However, if the existing password is not known, you will need to sign with an administrator account to change it.
Reset your Password (Admin)
Reset your Password (User)
If you are a user without Administrative access and need to change your password, you can do so by logging in with your existing email address and password.
Your password has now been changed.