If they are from emails that you have not sent then a spammer is using your email address as a return address for the junk they are sending.

How do you stop it. You wait until they get tired of using your address and move on to the next victim. Be more protective of your email address and other personal info to help prevent this in the future.

" Be more protective of your email address and other personal info to help prevent this in the future."

and how do i do that?

Do not post email address on any public forum. Do not use public computers to logon to private accounts.

Unfortuantely, your friends etc may have received emails alledgely from you. Suggest, you create a signature in your email and always use it to help your friends and relatives know that the email really was from you. I would send email to your contacts using a signature appolgising for any emails they may have received, but explain they were not sent by you. Tell them all future emails from you will have a personal signature to help them identify genuine emails.

This is a useful page which offers alot of good helpful advise.

• http://www.techlicious.com/tip/what-to-do-when-your-email-gets-hacked/