Email Address Validation and List Verification Component
A .NET library that provides the flexibility, stability and ease-of-use desired for validation email addresses in your windows forms and ASP.NET projects. Includes C#, VB code examples and sample applications.

• Seven levels of validation featured
• Syntax verification is customizable
• Query mail servers for confirmation of recipients
• DNS and SMTP sessions are fully configurable
• Step-by-step, or completion-only, progress options
• MX Record and domain resolution capabilities
• Performance
• Blacklist and Whitelist support
• Unique "Greenlist" feature for domains that always validate
• Domain caching options
• Persistent connections for shared domains
• Fully developed in managed C#
• 64-bit OS support
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• Complete list validation with a single method call
• SMTP and DNS protocol knowledge is not required
• Asynchronous (event-driven) and synchronous (blocking) support
• Full drag/drop integration within Visual Studio
• Integrates with Visual Studio 2005, 2008, 2010, 2012
• Many sample projects in C# and VB.NET, including ASP.NET