1. Go to Slack and search for Slack Mail or directly access it by clicking Slack Mail.
2. Over there you need to login first using /connect-email
3. Click your provider, for now its only Google & Microsoft.Once you authorize the access you will be able to use the full potential of the bot bot

Commands

• /connect-email: Connect Gmail or Outlook.
• /check-accounts: Show connection status.
• /get-emails: List inbox emails.
  • Usage: /get-emails gmail [pageSize] [nextToken] [upload] or /get-emails outlook [pageSize] [skiptoken] [upload]
  • Defaults to 5; max 50. Include upload to also upload attachments to Slack.
• /open-email: View full content of a specific email.
  • Usage: /open-email gmail 1 or /open-email outlook 2 (indexes from the latest fetch)
• /reply-email: Reply to a listed email.
  • Usage: /reply-email gmail 1 Thanks for the update (indexes 1–5 from latest fetch)
• /search-email: Search inbox and get quick open links.
  • Usage: /search-email gmail invoice or /search-email outlook project
• /send-email: Opens modal to send email (supports attachments, schedule).
• /clear-bot: Clears bot messages in the channel.

1. You can connect Google or Microsoft Account.
2. You can access the last 5 emails from your primary inbox.
3. Attachments are supported in emails, so if there are any you can access it.
4. You can send emails from slack itself with attachments !
5. You can switch between inboxes efficiently.

git clone https://github.com/adhyys07/slack_Mail.git
cd slack_Mail
npm install

Framework / Packages

• Node.js + Express (API and routes)
• Slack Bolt (Slack commands + views)
• Google APIs (Gmail send/read/attachments)
• Microsoft Graph (Outlook send/read/attachments)
• Redis (token store)
• Axios (HTTP), IMAP client
• Heroku (For Bot Hosting)

Environment Variables

SLACK_BOT_TOKEN=your_slack_bot_token
SLACK_SIGNING_SECRET=slack_bot_signing_secret
GOOGLE_CLIENT_ID=google_client_id
GOOGLE_CLIENT_SECRET=google_client_secret
GOOGLE_REDIRECT_URI=https://server_url/auth/google/callback
MS_CLIENT_ID=microsoft_client_id
MS_CLIENT_SECRET=microsoft_client_secret
MS_REDIRECT=https://server_url/auth/microsoft/callback
REDIS_URL=your_db_url
BASE_URL=https://server_url
PORT=3000
PORT=3000

1. Create a Slack App: https://api.slack.com/apps → "Create New App" → From scratch.
2. Basic info: Add name/icon and choose your workspace.
3. OAuth & Permissions: ns:
   • Scopes (Bot Token): commands, chat:write, files:write, im:history (if needed), plus any others your flows require.
   • Install to Workspace → copy SLACK_BOT_TOKEN.
4. App Credentials: copy SLACK_SIGNING_SECRET.
5. Slash Commands:
   • /connect-email, /get-emails, /open-email, /reply-email, /send-email, /search-email, /clear-bot
   • For each command set the Request URL to: https://your-server.com/slack/events
6. Event Subscriptions:
   • Enable events; Request URL: https://your-server.com/slack/events
   • Subscribe to bot events if needed (e.g., app_home_opened if you add a home tab).
7. Interactivity & Shortcuts: ts:
   • Enable and set Request URL: https://your-server.com/slack/events
8. Environment:
   • Set SLACK_BOT_TOKEN and SLACK_SIGNING_SECRET in your hosting environment.
9. Deploy:
   • Ensure your server (Express + Bolt) listens on /slack/events and that your public BASE_URL matches the URLs above.
10. Reinstall after scope or command changes.

I have used AI for bug fixing and code suggestions, also at some place to modify some features for this bot !