I believe something changed to the mail config of Contact Form 7 v5. I re-installed v4.9 and it worked again (I had the same problem as you).
Thread Starter
glynmo
(@glynmo)
Hi, I use the following:
Arconix FAQ
Contact Form 7
Duplicate Post
Feed Them Social
Fusion Builder (this is my theme’s “builder” (Avada))
SG Optimizer
Slider Revolution
WP Rocket
Yoast SEO
