Unfortunately, I have the same problem on my site using Contact Form 7 5.0.2. I have my contact form set up to send mail, as well as to use Mail (2) as an autoresponder. I got the autoresponder, but the eMail address in the ‘To:’ field for my form never gets sent anything. I checked with my mail host and they checked their logs and did not see any incoming messages which got blocked, or removed.
