Contact form not working

I don’t see the recaptcha overthere, but this error looks like the error that comes with 4.7. Downgrading Contact Form 7 to 4.5.1 solved that for me (error with an orange frame)

Downgrading to 4.5.1 fixed it for me. Had the same problem here (saying it couldn’t send, try again later) w/the orange frame. Using several smtp plug-in’s didn’t help, either.