Got an Email about a banned account. I logged into mine at its fine. Scam?!?

The email i got was from Would this be the email i would get one from or is this just someone fishing. If not I have a big issue. And if it is then i am sure i am not the only one who got this. This is what it read. And know that i have never cheated or begin to known how to. Hello Summoner, Your account was banned due to the use of malicious 3rd party programs or modifications to your League of Legends client. We believe that all players should play on equal footing in an effort to promote competitive sportsmanship. You should be aware that modifying your League of Legends client is against the Terms of Use: We hope you can see that it is unsatisfying to play against other players who are using a tool to gain an advantage over others. If you wish to dispute the actions taken against your account, you may contact us via this link:
Report as:
Offensive Spam Harassment Incorrect Board