Rebex MSG

Microsoft Outlook MSG file format library for .NET.

Published by Rebex
Distributed by ComponentSource since 2003

Prices from: $ 293.02 Version: 8.0.9673 NEW Updated: Jun 25, 2026

Screenshot of Rebex MSG

Rebex MSG Releases

Released: Jun 25, 2026

Updates in 8.0.9673

Features

  • ML-KEM support in TLS - Rebex TLS library adds support for post-quantum ML-KEM key encapsulation algorithm, as part of the following hybrid key agreement ciphers: X25519MLKEM768, SecP256r1MLKEM768, SecP384r1MLKEM102. ML-KEM is supported out-of-box on PQC-enabled Windows with .NET 3.5 or higher. On other platforms, a PQC plugin is needed.
  • ML-DSA support in TLS - Rebex TLS library also adds support for post-quantum ML-DSA signature algorithm. This is currently 'experimental', because the...
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Released: Jun 1, 2026

Updates in 7.0.9649

Features

  • Cryptography: Added workaround for uncommon RSA keys with very long exponents.
  • Cryptography: Now checks public key during any Diffie-Hellman key exchange.
  • Cryptography: Improved compatibility with Windows CNG keys.
  • Cryptography: Improved private key handling in CNG interop.
  • Cryptography: Now uses constant-time-compares where appropriate.

Fixes

  • Cryptography: Fixed .NET 10 detection in .NET Standard binaries.
  • Cryptography: Fixed Base-64 decoding of PEM files in SignedData/EnvelopedData...
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Released: Mar 5, 2026

Updates in 7.0.9561

Fixes

  • MIME: Fixed ArgumentOutOfRangeException in MimeEntity.SetContent for empty bodies with BOM.

Released: Nov 12, 2025

Updates in 7.0.9448

Features

  • Support for .NET 10 - This release adds a new set of binaries targeting .NET 10. It supports the following platforms:
    • Windows (x64, x86, ARM64).
    • Linux (x64, ARM32, ARM64).
    • Android (x64, ARM32, ARM64).
    • macOS (ARM64, x64).
    • iOS/iPadOS/tvOS (ARM64).
  • Support for Visual Studio 2026
    • All Rebex libraries are now fully supported in Microsoft Visual Studio 2026.
  • Common: Improved work with internal shared array pool.

Fixes

  • Cryptography: Fixed ECDSA support in SignedData.

Released: Sep 16, 2025

Updates in 7.0.9391

Fixes

  • All: Various documentation improvements.

Released: Jun 30, 2025

Updates in 7.0.9313

Features

  • Mail: Added IgnoreRedundantAsn1Data option to MailSettings/MimeOptions.
  • Cryptography: Added IgnoreRedundantData option to SignedData and EnvelopedData classes.

Fixes

  • Cryptography: Fixed NullReferenceException instead of InvalidOperationException in SignerInfo/KeyTransRecipientInfo and SignedData.

Released: Mar 18, 2025

Updates in 7.0.9209

Features

  • Mail: Added workaround for "multipart/signed" entities misplaced as views.

Fixes

  • MIME: Fixed behavior of MimeEntity.GetSignatureEntity() method.
  • MIME: Fixed non-persistence of original headers of detached S/MIME signature entities.

Released: Jan 15, 2025

Updates in 7.0.9147

Features

  • Common: Improved internal APM->TAP bridge for Socket methods on old platforms.

Released: Dec 18, 2024

Updates in 7.0.9119

Features

  • MIME: Added MailMessage.​Settings.​TreatAdditionalMixedTextPartsAsView option.

Released: Nov 12, 2024

Updates in 7.0.9083

Features

Support for Microsoft .NET 9 - This release adds a new set of binaries targeting .NET 9. They support all .NET 9 platforms:

  • Microsoft Windows (x64, x86, ARM64).
  • Linux (x64, ARM32, ARM64).
  • Android (x64, ARM32, ARM64).
  • Apple macOS (ARM64, x64).
  • Apple iOS/iPadOS/tvOS (ARM64).

Fixes

  • Cryptography: Added workaround for EnvelopedData with unpadded RSA EncryptedKey.
  • Cryptography: Added workaround for parsing CMS ASN.1 with redundant zeros at the end.
  • Cryptography: Fixed common name validation...
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