QUESTION:

I’m being incorrectly blacklisted when trying to post a comment on my site.
Users report blacklist messages when trying to post comments.



ANSWER:

A bug in Textpattern 4.0.4 can lead to false positives on comment spam blacklist checks in some circumstances.

The problem only affects servers and hosting companies that use a wildcard DNS record for the server hostname itself.

To fix the problem, update to the latest stable version of Textpattern (currently, v.4.0.5).