WP contact forms going to junk mail, fix?

I have a WP site, using the Divi theme. I have tried both the Divi and Green Form, contact forms. If a customers fill out either form, the messages go to my email junk folder. I am using MS Exchange for email host. What is a method, form, plug-in or another way to ensure my contact forms from my site go to my email inbox and not my junk mail?



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