Error on form – for sending email

I’ve used CF7 for many many years.
For contact forms I have always made the sending email address be the email address of the sender.

So… when a contact is received through the form, I can just hit reply in my email and just reply.

I have this on many domains.
PROBLEM: I now get errors saying this is not allowed or incorrect (or something to this effect) – it says the sending email doesn’t belong to the domain – or something to this effect at least.

But… I actually want this to be the case (just for this instance!).

Is there anything I can do to not have the error?

Thanks.