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      Email validation library, featuring full IETF-compliant syntax validation, DNS checking, mailbox existence test and tools for advanced batch processing.
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      Email validation library with Data Annotations support, featuring advanced syntax verification, ISP-specific syntax checks and disposable email address handling.

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    • Routing Assistant reached version 1.7
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EmailVerify for .NET

Advanced email validation component for Microsoft .NET

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🚀
EmailVerify for .NET has evolved into Verifalia, our cloud-based email verification SaaS
To verify email addresses in .NET / .NET Core, .NET Framework and .NET Standard be sure to use the free and open source Verifalia .NET SDK helper library at https://github.com/verifalia/verifalia-csharp-sdk

Product features

EmailVerify for .NET validates email addresses using different tools and technologies, packaged in one easy-to-use component for the Microsoft .NET platform; please see the sections below for a brief analysis of the more exciting features that our product exposes.



Advanced syntax validation

EmailVerify for .NET features a complete syntactical email validation engine that obeys to the current IETF standards, including RFC 1123, RFC 2821, RFC 2822, RFC 3490, RFC 3696, RFC 4291, RFC 5321, RFC 5322 and RFC 5336. It fully supports quoted strings, quoted pairs, internationalized domain names (IDN) and mailboxes, as well as comments and domain literals.
Read more


Disposable email addresses (DEA) detection

The component automatically detects temporarily email addresses generated by certain free services on the Internet collectively known as disposable email address providers, like Mailinator, 10MinuteMail, GuerrillaMail, TempInbox, MailEater, TrashMail and about 2000 more.
Read more


Mailbox existence check

EmailVerify for .NET can check if an email address exists without sending email messages; it does so by emulating the behavior of common mail exchangers and employing the SMTP protocol wisely, while respecting the Netiquette rules to avoid the originating IP address being tagged as a potential source of spam.
Read more


Catch-all domain test

With the term catch-all, we mean a mailbox on a domain that will receive all of the email messages addressed to that domain, even if their addresses do not exist in the mail server; EmailVerify for .NET detects catch-all domains automatically and gives back a specific status code that signal the presence of such a domain.
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Greylisting support

EmailVerify for .NET automatically detects the temporarily unavailability of the mailbox under test, a condition known as greylisting (or graylisting).
Read more


Yahoo! mailbox validation

Our email validation technology includes an integration feature modeled after the Yahoo! mail exchangers architecture; EmailVerify for .NET can validate Yahoo! email address up to the CatchAll level (the highest) and check if a given Yahoo! mailbox exist or not.
Read more


Detailed email validation results

With 40 different result statuses and a dedicated class hierarchy, EmailVerify for .NET includes great tools for investigating the reason of a specific email validation failure and inspecting the details of every aspect of the verification process, including the result of the syntax analysis, the DNS output (along with the MX records) and the complete SMTP transcript.
Read more


Features at a glance


  • Advanced syntax validation
    • Quoted strings and quoted pairs
    • Email address internationalization
    • Comments
    • Domain literals
  • Disposable email addresses (DEA) detection
  • Mailbox existence check
  • Catch-all domain test
  • Greylisting support
  • Yahoo! mailbox validation
  • Detailed email validation results
    • Syntax-related failures
    • DNS-related failures
    • Well-known disposable email address failures
    • SMTP failures
    • Mailbox validation failures
    • Catch-all rejection failures
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