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    Microsoft .NET components, libraries & tools

    • EmailVerify.NET
      Email validation component, featuring full IETF-compliant syntax validation, DNS checking, mailbox existence test and tools for advanced batch processing.
    • ProxyClient.NET
      Powerful proxy client component with support for SOCKS 4, SOCKS 4a, SOCKS 5 and HTTP proxy servers, allowing to establish proxied connections from both new and existing sockets.
    • MVC Extensions
      Powerful routing engine extensions for ASP.NET MVC: allows to declare SEO routes by way of attributes applied to the target MVC actions and generates URLs for them using compiler-safe lambda expressions.
    • Routing Assistant
      FREE

      A cool and free Visual Studio extension which allows to easily browse, define, match and filter ASP.NET MVC routes within ASP.NET applications and web sites.
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    Email validation

    • Validate email addresses
      Free online demo of our email validation technologies, featuring full IETF-compliant syntax validation, DNS checking and mailbox existence test.

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    • ProxyClient.NET
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    • MVC Extensions
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    • Routing Assistant reached version 1.7
      Published on Thursday, March 21, 2013

    • Verifalia: a new, complete hosted email validation service
      Published on Thursday, December 06, 2012

    • Routing Assistant v1.4 released
      Published on Friday, October 12, 2012

Overview Purchase

MVC Extensions helps you define and manage SEO routes for ASP.NET MVC with ease.

Products showcase

SEO Extensions product box

MVC Extensions

Cobisi MVC Extensions (formerly SEO Extensions) is an advanced tool for software developers that allows to optimize ASP.NET MVC web applications and sites for search engines. It comes with a powerful routing engine, which extends the standard ASP.NET routing module to provide a much more flexible way to define search optimized routes, and a complete set of classes that make customizing the entire routing infrastructure very easy.

In addition to that, MVC Extensions optionally integrates with Visual Studio (by way of our free Routing Assistant extension) and allows developers to easily explore the routes exposed by their websites, while also offering coding assistance for SEO routes without leaving the IDE.
Read more

EmailVerify.NET product box

EmailVerify.NET

EmailVerify.NET is a Microsoft .NET software component that validates email addresses with various tools, including:
  • Advanced syntax verification, according to IETF standards (RFC 1123, RFC 2821, RFC 2822, RFC 3696, RFC 4291, RFC 5321 and RFC 5322), with support for quoted words, domain literals, non-ASCII domain names (IDNA) and mailboxes, and comments
  • DNS validations, including MX record(s) lookup
  • Disposable and temporary email address detection
  • SMTP connection and availability checking
  • Mailbox existence checking, with greylisting and temporary unavailability support
  • Catch-all testing
Read more

ProxyClient.NET product box

ProxyClient.NET

ProxyClient.NET is a proxy client component targeted at the Microsoft .NET platform, that allows to easily establish proxied connections from both new and existing sockets. As of the current version, it can connect to proxy servers that use the following proxy protocols:

  • SOCKS v4
  • SOCKS v4a
  • SOCKS v5
  • HTTP-CONNECT proxy

Read more


Featured clients

Cobisi has risen to prominence as a leader provider in software development solutions, across a multitude of industries. Our product has shown proven success among dozens of Fortune 500 and industry-leading enterprise corporations.

About Cobisi

Cobisi is a leading provider of software development tools for the Microsoft .NET platform, catering to the increasing demand for advanced and innovative software solutions within today's enterprise markets.

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