Wordpress Forms Not Delivered Via Email

My Wordpress forms quit delivering to my inbox from one day to the next. I have check all my plugins etc. I attribute this now to Cloudways. Please help.

Hello, what form plugin are you using and are you using any type of SMTP plugin to ensure emails can be delivered successfully?

Hi, I solved it yesterday. I did not have a FROM email address in my application on Cloudways. I have no idea why it was working from one day to the next as I did had not made any changes in Cloudways since I opened it. It is working now though.I use ProPhoto, BTW.