Hi Josue,
I had sent test mails through the back end page of the plugin which is being sent successfully, but the problem arises when I fill the form and click submit.Hence it doesnt seem like a problem due to the server.
Hi,
I updated the Enfold Theme to 2.1.9. But the problem still persists. When I fill the contact form in home page (enveconit.com) the mail is sent. but when i fill the contact form from any internal page, eg SAP page (http://enveconit.com/services/sap/), the mail is not sent. Please look into it, since this is a live website and the leads for the website are generated from the contact form.