Hello, You are receiving the Google AppEngine Group's daily digest. This happens as you choose to receive email updates ("Send daily summaries" / "Send combined updates" / "Notify me for every new message") when you subscribed to the group. If you wish not to receive the digest emails, you need to change your group preference to "Don't send email updates" in the 3rd column here https://groups.google.com/forum/#!myforums
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