Hi Kofimokome,
Thank you for developing the Message Filter for Contact Form 7 plugin which I installed recently. It is just what I was needing to stop a hacker in Russia that was spamming my contact form.
May I suggest a possible improvement. I entered some spam words but they seem to affect all types of fields. If for example I would like to stop .co.uk in a text field, it would also stop email addresses in an email field. Perhaps having different spam word sections for different field types would be useful?
The spammer hitting me is using different id numbers in the text field so I would like to put in a spam word that looks for wild cards in a string, ie “id=****” (would block anything like id=1234). These are only little refinements that may or may not be possible, but your plugin is excellent and you have done a great job!
Thank you for your helpful work.