"The Email Validation Component is a true native, 100% managed C# component that can be implemented for both Webform and Winform."
Email Validation Component does:
1. An accurate syntax check
2. A domain check by looking up MX records
3. A username test using SMTP
We've packed a full set of solid, professional networking code into a simple component. With only one method call....
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downloading guide 
Support for Live Email Validation Component is available from the
publisher/developer site This download (Live Email Validation Component) is shareware. "Shareware is a marketing method for computer software. Shareware software is typically obtained free of charge, either by downloading from the Internet or on magazine cover-disks. A user tries out the program, and thus shareware has also been known as "try before you buy". A shareware program is accompanied by a request for payment, and the software's distribution license often requires such a payment." More info at
Wikipedia.
Soft32 (ITNT) cannot be held liable for issues that arise from the download or use of these software products. We encourage you to determine whether this software or your intended use is legal. Even if we try to check the program files for viruses, we cannot guarantee 100% that they are clean. For your own protection always check downloaded files for viruses, spyware and malware. 
