To reset the email account password, login to your control panel (cPanel) & access option Email Accounts. Once you click on Email accounts from cPanel, all email accounts are listed. Click on Change Password under Actions. It will ask you to change the password. Set the password & click on Change.
Here, you will also find option to change quota, delete account, access webmail & configure email client. You can use any of the options as desired.
If you find any issues, contact MilesWeb support team & they will be happy in assisting you with your queries.