S/MIME Library
A rock-solid component library for secure Email communications via S/MIME encryption and digital certificates. Sign and encrypt files, emails, and even newsgroup postings using X.509 digital certificates.
DownloadIPWorks S/MIME 2024 Is Now Available! The most recent version comes with features and updates made with security and developers in mind [learn more].
Secure Email Components
IPWorks S/MIME is a comprehensive suite of components for Email encryption and document security. IPWorks S/MIME implements the S/MIME standard for encryption and decryption using Public Key Cryptography Standards (PKCS).
Complete S/MIME Solution
S/MIME enabled components for - SMTP, POP, IMAP, as well as Certificate Creation & Management, much more!
X.509 Certificate Creation
Become your own certificate authority. Advanced components for digital certificate creation, validation, and management.
Strong Encryption
Robust enterprise-class security with industry standard encryption using S/MIME and Digital Certificates.
Uniform & Extensible Design
Very easy to use, with a uniform, intuitive, and extensible design. Common component interfaces across platforms and technologies.
Fully Integrated Components
Native software components for any supported development technology - with no dependencies on external libraries.
Blazing Fast Performance
Based on an optimized asynchronous socket architecture that has been actively refined for over three decades.
Red Carpet Vol. 2 2025 Now Available
New Tools for In-Browser Signatures, Cloud Spreadsheet Integration, SFTP Server Hosting, PDF Form Filling, and More
The latest release of our signature Red Carpet Subscription is now available, including three new products: PKI Agent for in-browser signing using system certificates, Cloud Spreadsheets for integrating spreadsheet management into your apps, and CoreSSH Server for hosting simple and secure SFTP & SSH servers. In addition, this update brings Cloud Calendars and Cloud SSO from beta into full release, adds support for creating and filling PDF forms to Secure PDF, and much more.
All new updates and components are available as part of the Red Carpet Subscription. Download IPWorks S/MIME or read the update highlights.
Product Features
IPWorks S/MIME includes a generic S/MIME component as well as S/MIME enabled versions of the IPWorks POP3, IMAP, SMTP, FileMailer and HTMLMailer components. Digital certificate creation, signing, and management features have also been included.
- Support for the S/MIME v2 and S/MIME v3 standards for mail and document encryption.
- Encrypt/decrypt, sign, and verify message signatures using S/MIME and digital certificates.
- S/MIME enabled versions of all major Internet mail protocols.
- Easily create HTML emails and include file attachments.
- A complete unified framework with a common, easy-to-learn object model and simplified interfaces that enable you to do more.
- Advanced Digital Certificate capabilities allow you to create, sign, and manage X.509 Digital Certificates. Become your own certificate authority.
- FIPS 140-2 compliant cryptography.
- Licensed by the US Government for export (ECCN classification)
- Components are thread-safe on critical members.
- Fast, robust, reliable components that consume minimal resources.
- Native development components for all supported platforms and technologies.
- Rigorously tested, rock solid libraries that have undergone hundreds of thousands of hours of testing both internally by our QA team and externally through customer installations.
- Detailed reference documentation, sample applications, fully-indexed help files, and an extensive online knowledge base.
- Backed by multi-tier professional support, including free email support and enterprise-level paid support.
Supported Platforms
.NET
.NET Framework & Cross-platform Components
Based on a 100% C# codebase, with no dependencies on native code. The edition of choice for all .NET applications.
Cross-platform support for Windows, Linux, macOS, and anywhere .NET is supported. Due to OS limitations, not all features are available on all operating systems. Native libraries are also available for individual platforms.
- Fully-managed .NET components written in C#.
- Support for .NET 9, .NET 8, .NET 6, .NET 5, .NET Core 3.1, and earlier.
- Support for .NET Framework 2.0 - 4.8.
- Works with Xamarin and MAUI via .NET 6.
- .NET Standard 2.0 and 2.1 support.
- Fully asynchronous API available.
- Cross-platform support.
- Support for Windows IoT.
- Comprehensive integrated product documentation.
- Seamless integration with Visual Studio.
- Extensive sample applications written in C#.
Java
Pure Java Classes (Java/J2EE)
Pure Java Classes exposed through an intuitive API for portability across all major platforms.
- Pure Java Classes.
- Includes an extensive library of samples written in pure Java.
- J2EE version is optimized for server-side development.
- Seamless integration with popular development environments including JBuilder, Eclipse, and IntelliJ.
- Support for JDK version 1.7 and up.
C++
C++ Class Libraries (Windows / Linux / macOS)
C++ classes packaged in 32-bit & 64-bit Windows DLLs, and C++ libraries that can be compiled against many Unix flavors, including but not limited to Linux, Solaris, macOS, AIX, FreeBSD, etc. The edition of choice for C++ programming on any platform or C++ development technology.
- Windows 32-bit & 64-bit C++ class libraries (Windows DLLs).
- C++ libraries for Unix (Linux, Solaris, FreeBSD, macOS, etc.).
- Dynamic library (dylib) for macOS development using Swift & Objective-C on Intel and Apple Silicon (ARM64).
- C++ ARM Support.
- Extensive library of sample applications and comprehensive documentation.
- Seamless integration with popular development environments including Microsoft Visual C++.
- Obfuscated source code available with the Red Carpet Subscription.
macOS
XCFramework for macOS and iOS development
Modern XCFrameworks for building high performance macOS and iOS applications with blazing connectivity capabilities.
- Support for native Swift development (including Swift 5)
- XCFramework packaging for macOS, iOS, iOS simulator, and Catalyst projects
- Full support for Intel and Apple Silicon (ARM64)
- Easy integration in XCode 13+
- Simplified support for Objective-C projects
- Extensive demo applications and comprehensive documentation
Swift
XCFramework for macOS and iOS development
Modern XCFrameworks for building high performance macOS and iOS applications with blazing connectivity capabilities.
- Support for native Swift development (including Swift 5)
- XCFramework packaging for macOS, iOS, iOS simulator, and Catalyst projects
- Full support for Intel and Apple Silicon (ARM64)
- Easy integration in XCode 13+
- Extensive demo applications and comprehensive documentation
JavaScript
Pure JavaScript for Node.js, Electron and other Platforms
Pure JavaScript classes with no additional dependencies. Optimized for use in Node.js and Electron.
- Pure JavaScript classes with no dependencies.
- Support for all major Node.js versions.
- Seamless integration with Visual Studio Code.
- Optimized for performance.
- Comprehensive product documentation with extensive sample applications.
- Seamless integration with Electron.
Delphi
Delphi VCL Components
Native Delphi VCL components with no external dependencies. It features the same trustworthy components that come with other editions, available as native Delphi VCLs for real Delphi performance.
- Native Delphi VCL and FMX components.
- Extensive Delphi sample applications.
- Comprehensive integrated product documentation.
- Support for Lazarus IDE and Free Pascal.
- Support for all Delphi versions between Delphi 6 and RAD Studio 12.
- Support for Windows, Linux and macOS.
C++ Builder
C++ Builder VCL's
Native C++ Builder components, written in C++ and compiled with the C++ Builder compiler for blazing performance. The natural choice for C++ Builder programming.
- Native C++ Builder components.
- Extensive C++ Builder sample applications.
- Comprehensive integrated product documentation.
- x86 and x64 platform support.
- Support for all C++ Builder versions between C++ Builder 2009 and RAD Studio 12.
PHP
Cross-platform PHP Component Libraries
Cross-platform PHP component libraries / extensions for development on Windows, Unix, Linux, macOS, etc.
- 32-bit & 64-bit PHP libraries (Windows DLLs).
- PHP libraries for Unix (Linux, Solaris, FreeBSD, macOS, etc..).
- Support for PHP versions 5.2 through 8.3.
- Extensive library of sample applications and comprehensive documentation.
- Obfuscated source code available with the Red Carpet Subscription.
Python
Python modules (Windows / Linux / macOS)
Python modules for Windows, Linux, and macOS available for use in Python 3.
- Python modules for Windows, Linux, and macOS.
- Support for Python 3.
- Comprehensive documentation.
- Easy installation using PIP.
- Extensive library of sample applications.
Android
Pure Java Classes, Optimized for Android
Highly optimized, pure Java Classes for integrating blazing connectivity into Android applications.
- Pure Java Classes optimized for Android.
- Includes an extensive library of sample applications written in pure Java.
- Seamless integration with popular development environments including Android Studio.
iOS
XCFramework for iOS development
Modern XCFrameworks for building high performance iOS applications with blazing connectivity capabilities.
- Support for native Swift development (including Swift 5)
- XCFramework packaging for macOS, iOS, iOS simulator, and Catalyst projects
- Full support for Intel and Apple Silicon (ARM64)
- Easy integration in XCode 13+
- Simplified support for Objective-C projects
- Extensive sample applications and comprehensive documentation
Qt
Qt Class Libraries (Windows / Linux / macOS)
High-performance Qt classes packaged in 32-bit & 64-bit Windows DLLs; and C++ libraries that can be compiled against Linux, macOS, FreeBSD, and more. The edition of choice for Qt development on any platform.
- 32-bit & 64-bit C++ class libraries (Windows DLLs).
- C++ Libraries for Unix (Linux, macOS, FreeBSD, etc.).
- Support for Qt 4.8, Qt 5, and Qt 6.
- Seamless integration with Qt Creator.
- Obfuscated source code available with the Red Carpet Subscription.
Linux
C++ Class Libraries (Unix / Linux)
C/C++ libraries that can be compiled against any Linux or Unix OS. The edition of choice for C++ programming on any platform or C++ development technology.
- C/C++ Libraries for Unix (Linux, Solaris, FreeBSD, macOS, etc..).
- Seamless integration with popular development environments including Microsoft Visual C++.
- Compilable source code for compilation on various Unix platforms.
- Framework for macOS & iPhone development using Swift & Objective-C (Cocoa).
- Extensive library of sample applications and comprehensive documentation.
- Obfuscated source code available with the Red Carpet Subscription.
Components for Secure Email
The following components are included in IPWorks S/MIME. Please note that due to platform limitations, some components may not be available in all editions.
CertMgr
MIME
SFileMailer
SHTMLMailer
SIMAP
SMIME
SPOP
SSMTP
Included Samples
The following sample projects are installed with the product. Please download the trial to get started.