To temporarily alleviate this issue, I created the following filter to stop my phone ringing constantly:

    from:(me@gmail.com|me@salesforce.com) to:(me@gmail.com) -{has:attachment}

    Mark as read
    Skip the inbox

Until I added this rule I was being pinged once a minute since lunch time yesterday.

This ignores: emails from me, or some sales force spammer they were using, to me, that doesn’t have an attachment (so I can still email myself files).