The .NET Email Validation Library by Kellerman Software is the cutting edge of email validation. We spent months analyzing fake email addresses. The fake email pattern checker eliminates numerous bad emails that actually return as valid email addresses with our competitors. It detects mail servers that implement grey listing so the email addresses can be verified later. It detects servers that are blocking your mail server. It detects disposable email addresses such as mailinator.com. It detects free email addresses. Sick of curse words in your mailing list? Eliminate them. The .NET Email Validation library doesn't have levels; it has options. Choose whatever options suit your project. Yes it performs industry standard syntax checking, mxRecord (Mail Exchange Record) lookups, and mailbox verification using multiple threads asynchronously.It supports all .NET project types including ASP.NET MVC, WPF, Webforms, Winforms, WCF, Windows Services, and Web Services. It can be used with any .NET language including VB.NET and C#. Download the full list of features.

Industry Standard Checking Supports RFC 821 syntax checking of email addresses, MxRecord (Mail Exchange Record) lookup, and Mailbox account checking via SMTP. It uses multiple threads and takes advantage of multiple and multi-core processors.
Proxy Support Supports 4, 4a, 5, and HTTP Proxies. Also has the ability to set the DNS Server when performing MX Record Lookups
Simple to Use Validate an email, or a list of hundreds of thousands of emails, with a single line of code.
Fake Email Pattern Matcher Did you know abc@abc.com is a valid email address? It has a valid syntax, a valid mail server and the mail server actually returns true for a mailbox check. The fake email pattern matcher recognizes thousands of bogus email addresses just like this example.
Disposable Email Addresses Prevent bots from posting messages on your message board by preventing them from using disposable email addresses. It recognizes thousands of disposable email domains such as mailinator.com, spamavert.com, and spamex.com.
Free Email Addresses One way to prevent fraud is to disallow free email addresses when customers order products on your eCommerce site. The .NET Email Validation Library recognizes thousands of free email domains such as hotmail.com, gmail.com, and rediffmail.com.
Detects Greylisting When grey listing is in place, a mail box check cannot be performed. The .NET Email Validation Library detects grey listing to verify the address at a later time.
Detects Blocking Detect when your mail server or IP Address is being blocked by anti-spam software. This happens in shared hosting environments when a spammer uses the same mail server as your business. It detects blocking by spamhaus, SPF, SORBS, SpamCop, spamblock.outblaze, 86.blacklist.zap, SORBS and many others.
Documentation Industry standard formatted help and an easy to use demo is included.
Royalty Free Distribution Include with any .NET project royalty free.

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