A reader has tipped me to a problem that I can't solve, so I am throwing myself on the mercy of the the interwebs.
The problem is as simple as it is baffling:
- Readers are no longer getting email notifications of new comments after they subscribe to a post's comment thread.
- This problem is affecting both the "Subscribe to Comments" plugin and it is affecting the JetPack/wordpress.com subscription feature.
- Neither is sending emails.
And to make things more interesting, my blog can no longer send trackback/pingbacks to other sites (I can receive but not send).
I've tried disabling all the plugins, and I also flushed the cache. That didn't work.
My google-fu is failing me, so I thought I would post this publicly and see if anyone has encountered a similar bug, and might know a solution.
image by smswigart