Same here, this form isn’t sending and claims validation errors. Other forms on the same site all work fine.
https://locatehomes.co.uk/tenants/online-application/
Ok, I’m back working.
Look here
https://contactform7.com/2016/01/15/red-border-error-issue-on-wordpress-441/
Basically, my mail sending settings all messed up – had to re-install wp mail smtp plugin & re-configure. Also email sender field in contact form needs to match when it previously didn’t.
Mine is still broken. Any ideas anyone out there?
If you have functioning contact 7 forms, then I would look at what you’ve got in the Mail / From field in the settings of the one that doesn’t work. I have to set that to agree with what the SMTP settings were expecting (on older versions, this didn’t seem to matter)
Maybe compare the From address in your forms that work with the ones that don’t.
Good luck!