Google eats its own…

Received this from a student today, as reason why I hadn’t received an earlier lab:

———- Forwarded message ———-
From: Mail Delivery Subsystem <>
Date: Mon, Apr 28, 2014 at 4:57 PM
Subject: Delivery Status Notification (Failure)
To: [redacted-but-valid]
Delivery to the following recipient failed permanently:


Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the server for the recipient domain by [].

The error that the other server returned was:
421-4.7.0 [ 15] Our system has detected an unusual rate of
421-4.7.0 unsolicited mail originating from your IP address. To protect our
421-4.7.0 users from spam, mail sent from your IP address has been temporarily
421-4.7.0 rate limited. Please visit
421 4.7.0 html to review our Bulk Email Senders Guidelines. vj5si14563211obb.156 – gsmtp


Thus, Google is complaining about spam originating from: Google.


Talent. It’s everywhere.