I want to know wether it is possible, if i have sent an email through sas, Can i come to know that the recepient has actually clicked on that email, and have read it. means he has not deleted that email without even opening.
What you are asking is not unique to SAS and is more about incoming/outgoing EMAIL server/client interfaces, as well as being EMAIL content dependent.
Also the idea of monitoring someone else's INBOX habits/behavior is not likely. If/when someone does open an EMAIL, it may be possible to intelligently communicate back to some web-site or web-service but again not likely.
Such functionality is specific to the email software you use. For example when you MANUALLY send a Microsoft Outlook email you can set the message options to request a delivery and/or read receipt.
As far as I am aware you cannot set these options from within the SAS email interface, but you can configure Outlook to request delivery and/or read receipts for ALL email sent. This means when you send email via SAS through this Outlook mailbox you would automatically get delivery/read receipts.
The bottom line is check the features of your email client.