Worse than that actually because it's a phishing scam. If you receive the email just dropkick it into oblivion. It attempts to lure you in with an 'appeal process'.
"This isn't legit and is indeed a Phising site," said a Jagex representative. The email wants you to review the allegation by the system and then launch an appeal through a website. This is a complete phishing scam though so just dump the email.
The dirty scammer email reads:
Dear Player,
We regret to inform you that your account has received an infraction due to a major macroing offense. Please visit the appeal section under Account Management to view evidence of your infraction(s) and to appeal any infraction(s) that you feel were unjustified.
To view the evidence please click here: https://secure.runescape.com/m=weblogin/loginform.ws?mod=offence-appeal&ssl=1&expired=1&dest=account_history.ws
Please note: Due to a recent bug in our infraction system, some accounts may have received a void infraction. The majority of void infractions have been removed but we cannot ensure that all infractions have been removed. We urge you to visit the appeal section to appeal any unjustified infractions received due to system errors.
Many thanks,
Jagex Games Studio