Rebex IMAP

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

Access and manage IMAP mailboxes from .NET applications.

  • Supports IMAP, SMTP, MIME, and S/MIME protocols for full email handling.
  • Includes secure authentication and connection options with TLS/SSL support.
  • Offers extensive asynchronous operations, logging, and customization features.
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Comprehensive IMAP .NET library for secure and efficient email communication.
Rebex IMAP is a .NET component that enables developers to communicate with IMAP servers. It supports receiving, listing, searching, uploading, and deleting emails, as well as sending emails via SMTP. The library includes a MIME/S/MIME API for message signing and encryption, with support for modern authentication and security standards, making it suitable for desktop and mobile .NET applications.

IMAP Server Connectivity

Provides simple, straightforward methods to connect, log in, search, retrieve, and manage email messages.

Flexible Authentication Modes

Supports various authentication methods including password, OAuth 2.0, client certificates, NTLM, Kerberos, GSSAPI, and single sign-on.

Message Operations

Allows listing, downloading, uploading, copying, deleting messages, handling flags and keywords, and working with message headers and parts.

Folder Management

Enables creating, renaming, deleting, subscribing to folders, checking existence, setting active folders, and detecting changes on the server.

Search Capabilities

Supports searching messages using multiple criteria with logical operators, and retrieving specific message fields within selected subsets.

Advanced IMAP Features

Includes support for UIDPLUS extension, custom commands, fine-tuning client behavior, working with IMAP extensions, and connecting to Exchange shared mailboxes.

MIME and S/MIME Support

Incorporates APIs for constructing and parsing MIME messages, along with secure S/MIME operations including signing and encryption using X.509 certificates.

Robust Security and Connection Options

Supports explicit and implicit TLS/SSL, detailed server certificate validation, security protocol configuration, and proxy support including SOCKS and HTTP CONNECT.

Asynchronous and Event Driven Operations

Offers task-based and IAsyncResult asynchronous patterns, support for .NET 'await' operator, and events for notifications, logging, and transfer progress.

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