Webform response: "Illegal information. Data not submitted." I have a very simple webform (ie. name, email, comments) that has begun giving this response to any submissions, no matter what they are:



Has anyone seen that before? The results are still saved in the webform but it causes confusion and people also enter their comments multiple times as a result.
It seems that message is triggered by the _webform_submission_spam_check function. Looking at the code, it seems to check the following regular expression:

'/(b?cc\s?:)|(content\-type:)/i', $to . "\n" . $subject . "\n" . $from . "\n" . $headers


Maybe some of the submissions contain "cc" or "bcc" or "content-type"?