Kit incident

Blacklist on email sending

Notice Resolved

Kit experienced a notice incident on May 20, 2026, lasting —. The incident has been resolved; the full update timeline is below.

Started
May 20, 2026, 08:26 AM UTC
Resolved
Aug 04, 2016, 08:10 PM UTC
Duration
—
Detected by Pingoru
May 20, 2026, 08:26 AM UTC

Update timeline

  1. identified May 20, 2026, 08:26 AM UTC

    Our ConvertKit IP addresses are appearing on spam blacklists. We've contacted the spam blacklist provider and will be off their lists shortly.

  2. identified May 20, 2026, 08:26 AM UTC

    We've added a couple more IP addresses to our accounts so that messages will continue to get delivered. More updates coming soon.

  3. resolved May 20, 2026, 08:26 AM UTC

    This is now resolved. There shouldn't be any long term implications from this blacklist now that it is removed and the spammers have been contained.