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Raven MDA v0.1.0

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@Aravinda-HWK Aravinda-HWK released this 09 Oct 16:16
v0.1.0
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🪶 Raven MDA – Release Notes

Version: v0.1.0
Release Date: 2025-10-09

✨ Overview

Raven is a lightweight Message Delivery Agent (MDA) and IMAP server written in Go.
This release introduces a unified IMAP command dispatcher, improved client handling,
and a cleaner modular structure for future extensibility.

🚀 New Features

  • Unified Client Command Handler (handleClient)
    Routes all IMAP commands through a centralized switch, improving maintainability.

  • Supported IMAP Commands
    Implemented core commands:

CAPABILITY, LOGIN, AUTHENTICATE, LIST, LSUB, CREATE, DELETE, RENAME, SELECT, EXAMINE, FETCH, SEARCH, STATUS, UID, IDLE, NAMESPACE, UNSELECT, APPEND, NOOP, LOGOUT, STARTTLS
  • Standardized Response System
    Added sendResponse() for consistent and clear IMAP replies.

🛠️ Improvements

  • Safe Logging:
    Message bodies and headers are now masked in logs for better security and readability.

  • Connection Stability:
    Added a 30-minute read timeout to prevent idle connections from hanging indefinitely.

  • Error Handling:
    Invalid or incomplete client commands now return standardized IMAP BAD responses.

  • Code Structure:
    Command handlers split into separate methods for modularity and testing.

🧠 Technical Notes

  • Responses now comply more closely with RFC 3501 (IMAPv4rev1) format.
  • Logging enhanced with contextual information (Client: and Server: prefixes).
  • Ready for integration with Raven's SQLite storage layer for mail persistence.

🪶 About Raven

Raven is designed to be fast, modular, and storage-agnostic —
ideal for developers who want to integrate relational databases as mail storage backends.

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