Subject: Google AdSense Account Status
From: Google AdSense <adsense-adclicks-noreply@google.com>
To: publisherXXX@gmail.com
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Hello,

It has come to our attention that invalid clicks have been generated on
your Google ads, posing a financial risk to our AdWords advertisers.
Please note that any activity that may artificially inflate an
advertiser’s costs or a publisher’s earnings is strictly prohibited by our
program policies.

We understand that you may want more information about the activity we detected. However, because we have a need to protect our proprietary detection systems, we’re unable to provide our publishers with any details about their account activity, including any web pages or users that may have been involved. Thank you for your understanding.

We recommend reviewing these references to learn more about invalid click activity and other activities that could endanger your account standing:
http://www.google.com/adsense/policies
http://www.google.com/adsense/terms
http://www.google.com/adsense/support/bin/topic.py?topic=8426

Please note that because we credit advertisers for any invalid activity we detect, we may adjust your account earnings for any days during which invalid clicks occurred.

If you were clicking your ads out of interest or to see who was advertising on your site, please note that clicking on your own ads for any reason is strictly prohibited by our program policies. Instead, we suggest using the AdSense preview tool as an alternative. This tool will allow you to check the destination of ads on your page without the risk of generating invalid clicks. For more information, please visit our Help Center at https://www.google.com/support/adsense/bin/topic.py?topic=160.

Lastly, please note that if we continue to detect invalid clicks on your Google ads, we may take further action on your account in order to protect our advertisers’ interests. Thank you for your understanding.

Sincerely,

The Google AdSense Team