Rebex MSG

RebexEmail Tools.NET
Version 8.0.9673 (Jun 25, 2026)

Manipulate Outlook MSG files efficiently with advanced .NET components.

  • Read, create, and modify Outlook MSG email message files.
  • Access message properties, recipients, attachments, and content.
  • Integrate MSG processing into .NET applications and services.
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Microsoft Outlook MSG file format library for .NET.
Rebex MSG is a .NET library designed for handling Microsoft Outlook MSG email message files. It offers support to read, modify, and save email components such as subjects, bodies in multiple formats, recipients, and attachments. The library also supports advanced email security through X.509 certificates for signing and signature validation, ensuring secure email processing across .NET platforms.

Comprehensive MSG Email Manipulation

Provides the MsgMessage class to manage Outlook MSG files, enabling you to access and modify the subject, body (plain text, HTML, RTF), sender, recipients, and attachments.

Direct MAPI Properties Access

Allows handling of underlying MAPI properties of MSG files to customize email content and metadata beyond standard fields.

MIME and S/MIME Support

Includes APIs for MIME and S/MIME message formats, enabling email signing, signature validation, encryption, and decryption based on X.509 certificates and PKCS #7 cryptographic standards.

Flexible Loading and Saving

Supports loading MSG messages from files or streams and saving changes back to files or memory streams.

Advanced Email Composition Features

Facilitates setting and retrieving message components such as From, Sender, To, CC, BCC, and supports working with multiple recipients and attachments.

Rich Body Format Handling

Enables access to and setting of email bodies in multiple formats including RTF, HTML, and plain text, accommodating various client and processing requirements.

Product Compatibility

Review the details below to ensure this product is supported within your environment.

Component Type

  • .NET

.NET Version

  • .NET 10 LTS
  • .NET 9 STS
  • .NET 8 LTS
  • .NET 5 / .NET Core 3.1
  • .NET 4.8 or earlier

.NET Platform

  • .NET Assembly
  • .NET Class
  • .NET Core 3.1 Assembly

IDE Support

  • Visual Studio