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Software components for data protection, secure storage and transfer

Download and try completely managed .NET components for sending MIME and S/MIME mail over SMTP - SecureBlackbox®

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Download SecureBlackbox (.NET edition), which includes SSLBlackbox and MIMEBlackbox packages

More information

With SecureBlackbox you can create MIME or S/MIME (encrypted or signed MIME) message and send it using SMTP protocol with optional SSL/TLS support.

Unlike standard SMTP component in .NET, SMTP client component included into SecureBlackbox supports advanced features such as secure SSL/TLS channel in explicit and implicit mode.

Licensing and use

Mail component can be licensed in one of the following packages:

  • SecureBlackbox Professional
  • SecureBlackbox Standard

.NET edition of SecureBlackbox can be used on Windows desktop systems, Silverlight-enabled systems, on Windows Phone, Android (with Xamarin.Android) and iOS (with Xamarin.iOS) and on Linux systems with Mono installed. You can use components with Portable Class Library (Windows RT API, formerly named Metro, suitable for Windows Store Applications).
For development you can use one of the following development tools:

  • Visual Studio 2015
  • Visual Studio 2013
  • Visual Studio 2012
  • Visual Studio 2010
  • Visual Studio 2008
  • Visual Studio 2005
  • Delphi Prism
  • other development tools for .NET and Mono platforms



Download SecureBlackbox (.NET edition), which includes SSLBlackbox and MIMEBlackbox packages

Read more about MIMEBlackbox

Read more about SSLBlackbox

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As of July 15, 2016 EldoS Corporation will operate as a division of /n software inc. For more information, please read the announcement.

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