Hello Ramessh,
From is used to show where the message is being routed from. Basically, it is the person or group sending the message. To is the person or group that will receive the message. Click on the "Test" button on the "Notification" tab. Did you receive an error? If so, please post the error messge on the forum. More than likely it may be the group or user does not have a mailbox or there is a problem with the SMTP connection.
Looking forward to hearing from you soon.