mailslide 0.4.0

Extract, analyze, and automate Outlook Classic emails on Windows, with optional LLM-powered plugins.

Mailslide

A Windows + Outlook Classic automation tool for turning repetitive email work into reliable workflows. Use configurable jobs and optional LLM plugins to classify, route, summarize, and structure email processing.

Language: English | Traditional Chinese

Warning: AI reads your emails. Make sure emails processed by AI do not contain personal privacy data or business confidential information, or use a local model for processing.

Disclaimer: This project is provided as-is and does not guarantee the security of data processed by third-party or local AI models. The project authors are not liable for any data breach, confidential information leakage, or related damages resulting from user inputs or model services. Users are responsible for risk assessment and compliance with organizational policies and applicable laws.

Why Mailslide

• Standardize Outlook processing with repeatable job-based workflows.
• Go beyond classification: move folders, create appointments, export JSON/CSV/Excel.
• Keep deployment flexible: OpenAI-compatible APIs or local models (Ollama, llama.cpp).
• Friendly for non-developers: initialize and edit configs directly in the TUI.

Typical use cases

• Operations and assistants: triage meeting requests, alerts, and routine inbox traffic.
• PMs and sales: convert email streams into trackable events and summaries.
• Engineering and support: auto-tag and prioritize incoming threads.

30-second start (End users)

uv tool install mailslide
mailslide-tui

After first launch, open About and click Initialize Config.

Upgrade:

uv tool upgrade mailslide

Pre-release compatibility (LLM path):

• Canonical LLM dependency policy is defined in pyproject.toml under project.optional-dependencies.llm.
• Current incident-closure policy for LLM execution path is httpx<1.
• Release-candidate validation evidence lives in docs/releases/evidence/ (for this RC: docs/releases/evidence/0.4.0-rc2.md).

When a release changes config schema, the app auto-migrates config/config.yaml on load and writes a timestamped backup (for example: config.yaml.bak.20260327_153000).

30-second start (Developers / source mode)

uv sync
uv run app.py

Then in TUI:

1. Open About and click Initialize Config.
2. Open Configuration and set Jobs / LLM / Plugins.
3. Return to Home and run a job (Preserve RE/FW is ON by default and can be toggled on Home).

Screenshots

Plugin Capability Matrix

Plugin	Primary purpose	LLM required	Typical output
add_category	Classify emails and add categories	Yes	Outlook category tags
move_to_folder	Decide and move target folders	Yes	Folder move result
create_appointment	Create calendar items from email content	Yes	Outlook calendar items
event_table	Extract event data into a table	Yes	output/events.xlsx
summary_file	Generate summaries and priorities	Yes	output/email_summaries.csv
write_file	Export raw email data	No	output/*.json

Full Guide

• English: GUIDE.en.md
• Traditional Chinese: GUIDE.md

The TUI Guide tab now prefers GUIDE.en.md / GUIDE.md and falls back to README files for compatibility.

Requirements

• Windows
• Outlook Classic (not New Outlook)
• Outlook must stay open while running

License

GPL-3.0-or-later. See LICENSE.