I’ve had the same problem since the latest WordPress update to version 4.8 – 40 broken links in notifications since: 28 “403 Forbidden;” 8 “False Positive;” and 2 “Timeout.” I checked all of them and none were broken. After updating the plugin to version 1.11.3, I selected “Not Broken” and “Dismiss” for each. I’ll repost if they come back.
