On our side, it looks like these emails were delivered to the group email address. Is it possible that this is an internal-only group address or New Relic is being blocked from the network?
Many messages end up caught in a company’s spam filter. The best way to ensure that your system recognizes email sent by us as legitimate messages is to add firstname.lastname@example.org and *@mailer-d.newrelic.com to your whitelist or “Safe Senders” list as a trusted email source.
Please let us know if updating these settings allows for you to receive the email.