Mail Manager - Outlook Add-in

Mail Manager is a custom Microsoft Outlook add-in that enhances your email-sending experience with advanced file handling, rule enforcement, and customizable security modes.

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Features

Automatic Local Backup

• A JSON file with email metadata (To, Subject, Body, Timestamp, etc.) is saved locally each time you send an email.
• All attachments are also saved to your local device for backup and auditing.

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Email Rule Enforcement

Before an email is sent, the following rules are validated (depending on selected mail mode):

1. Suspicious Attachment Name Check
   Blocks files with names like malware.txt, virus.js, etc.

2. Attachment Size Limit
   Ensures no single attachment exceeds 5MB.

3. Confidential Content Scan
   Scans .txt files for sensitive keywords such as "secret" or "confidential".

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Mail Modes

Users can select from three different modes depending on their use-case. Each mode determines which validation rules apply:

Mode	Attachment Name	Attachment Size	Attachment Content
Private	Checked	Checked	Checked
Protected	Checked	Checked	Not Checked
Public	Checked	Not Checked	Not Checked

Private mode is the most secure; Public mode is the most lenient.

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How to Install

Prerequisites

• Outlook (Web/Desktop)
• Manifest file (manifest.xml)
• Python executable for local file storage

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First-Time Setup

1. Download the manifest.xml file.

2. Open Microsoft Outlook.

3. Click on the Apps (grid) icon → Get Add-ins.

   

4. Go to My Add-ins → Scroll down → Click + Add a custom add-in → Select manifest.xml.

   

5. You're all set! The add-in is now active.

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Already Installed?

If the add-in is already added to your account, just run the provided Python executable to enable local saving functionality.

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Tech Stack

• Frontend: HTML, CSS, JavaScript (Hosted on Render)
• Backend: Python (Flask, packaged as .exe for local execution)
• APIs: Office.js (Outlook Add-in framework)

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