.NET Email & MX Component is a web based email application which offers four methods for validating email addresses. This software runs on server side and analyse the emails whether it can be stored in the server or not. This analysis can be done through four different methods for validating the emails for storing. In syntax level email address syntax are checked, in MX Record level it checks whether the email address has MX records, in SMTP level it checks about the server existance and in mail box levels it will check whether the server will accept any emails.