Hi !! The Nex-forms does not send messages using WP-SMTP plugin or similar. I need to use a different mail server for sending, already that the mail () function using native default account sends many messages for SPAM. The Contact Form 7 I know it works, but the Nex-Forms is not working. How do I proceed? Sorry my english, I'm Brazilian!
https://wordpress.org/plugins/nex-forms-express-wp-form-builder/