How to change the from address from 'no reply' for an email template in CRM

How to change the from address from 'no reply' for an email template in CRM

Hi,
We have our CRM set up with the from field as sales@XXX.   I have just created a series of email templates and sent a test and they are sending from noreply@zoho   I have tried searching for how to change the email template but don't have the options it secifies I select.  Plesae help!