Fix “Failed to send your message. Please try later or contact administrator by other way.”

I am using Contact Form 7 on one of WP sites and after update (not sure which one) I started getting this error after user submitted the form:

‘Failed to send your message. Please try later or contact administrator by other way.’

As always, lots of way to complicated solutions on the net when, in my case, the solution was simple.

This is what I had before (CF7 admin):
wrong mail contact form 7

And this is the one that works (I just replaced data in the FROM field):
correct mail form 7

of course you need to replace domain.com with your domain.

I do not know why did it worked before and why it stopped working but this is how I solved it. Of course you cant just hit reply now because your email is REPLY email. To solve this you can try this :

Contact Form 7 has a field called “Additional headers:”. Enter (literally) Reply-To: [your-email] and save.