You will find this API useful if you need to obtain e-mail validity and status.
The Email Validate API service quickly and accurately identifies whether or not an email address is valid and deliverable. It also offers suggestions for a correct address enabling users to select a more accurate and verified e-mail.
Email Validate is a RESTful API service. REST is a style of software architecture that provides a convenient and consistent approach to requesting and retrieving data.
Email Validate API returns data in JSON format. JSON is a common Internet format that provides a simple method of representing arbitrary data structures. According to json.org, it is a text format that is completely language independent but uses conventions that are familiar to programmers of the C-family of languages, including C, C++, C#, Java, JavaScript, Perl, Python, and many others.