Baffling WordPress Bug – Help?

6167255518_7949376c48_bA frustrating WordPress bug is blighting my Sunday, and I need some help.

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

About Nate Hoffelder (11585 Articles)
Nate Hoffelder is the founder and editor of The Digital Reader:"I've been into reading ebooks since forever, but I only got my first ereader in July 2007. Everything quickly spiraled out of control from there. Before I started this blog in January 2010 I covered ebooks, ebook readers, and digital publishing for about 2 years as a part of MobileRead Forums. It's a great community, and being a member is a joy. But I thought I could make something out of how I covered the news for MobileRead, so I started this blog."

9 Comments on Baffling WordPress Bug – Help?

  1. The solution might be to reduce the list of servers you ping or increase the timeout to something like 4-5 minutes.

  2. I had that problem once too (the email problem) I added a couple of addons to test send emails and test smtp settings. Turned out email settings on my webhosting where wrong. Have you recently updated to a newer version of a firewall plugin perhaps? Sucuri and all-in-one-firewall gave me some trouble regarding pingbacks (luckily on my staging websitea)… Hope you will fix it 😉

  3. I think you should contact your webhosting provider and ask if they updated something recently (PHP itself maybe or a PHP library).

  4. I had a problem where I wasn’t being notified of comments on my own website–turns out that yahoo had blacklisted the web hosting server. They had marked everything from there as spam. We had to mess with things to find an error message and basically found that the receiving mail server was blocking.

  5. There is a list of servers out on the internets somewhere that have been blacklisted by major players (yahoo, google, etc). You might want to see if your web server has been “added” to that list.

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