MainSleaze

Google Calendar is sending daily bulk email notifications to a spamtrap. The spamtrap was recently re-enabled after its timeout period, which means that for a period of over twelve consecutive months, it issued 500-level SMTP rejections to the daily Google Calendar email notifications. It is likely that this spamtrap years ago, when live, was subscribed to Google Calendar notifications. However, after a year of 500-level rejections to a daily bulk email, those emails need to have stopped. These did not, and are now spam. Google needs to fix its broken bounce processing for Google Calendar NOW.

Sending IP: 209.85.161.202

Spam Sample:

Actual Headers:

Received: from mail-gx0-f202.google.com (mail-gx0-f202.google.com [209.85.161.202])
        by <xxx> (Postfix) with ESMTP id <xxx>
        for <xxx>; Sun, 22 Jan 2012 <xxx> -0600 (CST)
Received: by <xxx> with SMTP id <xxx>
        for <xxx>; Sun, 22 Jan 2012 <xxx> -0800 (PST)
DKIM-Signature: <xxx>
MIME-Version: 1.0
Received: by 10.224.xx.xx with SMTP id <xxx>; Sun,
 22 Jan 2012 <xxx> -0800 (PST)
Reply-To: <xxx> <xxx>
Auto-Submitted: auto-generated
Message-ID: <<xxx>@google.com>
Date: Sun, 22 Jan 2012 <xxx> +0000
Subject: You have no events scheduled today.
From: Google Calendar <calendar-notification@google.com>
To: <xxx>
Content-Type: multipart/alternative; boundary=<xxx>

Readable Email:

From: Google Calendar <calendar-notification@google.com>
To: <spamtrap>
Subject: You have no events scheduled today.
Reply-To: <spamtrap>

<xxx>, you have no events scheduled today Sun Jan 22, 2012.

View your calendar at https://www.google.com/calendar/

You are receiving this email at the account <xxx> because you are subscribed to receive daily agendas for the following calendars: <xxx>.

To change which calendars you receive daily agendas for, please log in to https://www.google.com/calendar/ and change your notification settings for each calendar.