title: Wordpress ContactForm7 not sending message to email
body: <p>i'm using Wordpress 4.9.7 version , i installed ConatctForm7 plugin latest version.
  When submitting the message , it is stored on ContactForm db exetsnion and not sent to email . Usually the form renders an error  </p>
  
  <blockquote>
    <p>An error occurred while sending your message. Please try again
    later.</p>
  </blockquote>
  
  <p>But there is no error in the console .
  Any idea how to solve that issue ?
  thanks in advance</p>