sense4seo

I understand your problem. We couldn’t figure it out.

so we went for adding this to the config.php file

/** The Contact Form 7 plugin configuration check. */
define( ‘WPCF7_VALIDATE_CONFIGURATION’, false );

Hi, we have had exactly the same problem.

We also have a multisite, with domain mapping and CF7 generated a lot of issues.

We solved it by setting the validation rule in config.php to false

see the website of contact form 7