office365-connector

Office 365 / Outlook connector for email (read/send), calendar (read/write), and contacts (read/write) using resilient OAuth authentication. NOW WITH MULTI-ACCOUNT SUPPORT! Manage multiple Microsoft 365 identities from a single skill. Solves the difficulty connecting to Office 365 email, calendar, and contacts. Uses Microsoft Graph API with comprehensive Azure App Registration setup guide. Perfect for accessing your Microsoft 365/Outlook data from OpenClaw.

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Install skill "office365-connector" with this command: npx skills add tirandagan/office365-connector

Office 365 Connector (Multi-Account Enhanced)

Overview

This skill provides resilient, production-ready connection to Office 365 / Outlook services including email, calendar, and contacts. Now with multi-account support (v2.0.0), you can manage multiple Microsoft 365 identities (work, personal, consulting, etc.) from a single skill installation.

It solves the common challenge of connecting to Office 365 from automation tools by providing OAuth authentication, automatic token refresh, per-account isolation, and comprehensive Azure App Registration setup guidance.

Perfect for:

  • Managing multiple work identities across organizations
  • Separating personal and professional email/calendar
  • Accessing shared mailboxes and delegated calendars
  • Consultants and freelancers working across multiple clients

New in v2.0.0: Multi-account support! See MULTI-ACCOUNT.md for complete usage guide.

Attribution: Enhanced by Matthew Gordon (matt@workandthrive.ai) - See CREDITS.md for full attribution.

What's New in v2.0.0

Major Enhancements by Matthew Gordon:

  • ✨ Multi-Account Management - Handle multiple Microsoft 365 identities from one skill
  • 🔐 Per-Account Token Isolation - Separate, secure token storage for each account
  • 🔄 Easy Account Switching - Use --account=name flag across all operations
  • ⚙️ Default Account Selection - Set your preferred account for convenience
  • 📦 Legacy Import Tool - Migrate existing single-account setups seamlessly
  • 🎯 Account Management CLI - Simple add/remove/list/default commands
  • ✅ Full Backward Compatibility - Existing single-account setups work unchanged

See CHANGELOG.md for complete version history.

Capabilities

Email Operations

  • Read emails (inbox, sent items, folders)
  • Send emails (with attachments, HTML formatting)
  • Search emails by sender, subject, date range
  • Manage folders and move messages
  • Mark as read/unread, flag messages
  • Delete messages

Calendar Operations

  • Read calendar events
  • Create/update/delete events
  • Check availability
  • Manage meeting invitations
  • Support for recurring events
  • Time zone handling

Contact Operations

  • Read contacts and contact folders
  • Create/update/delete contacts
  • Search contacts by name, email, company
  • Manage contact groups
  • Sync contact information

Quick Start - Multi-Account

Add Your First Account

cd skills/office365-connector

# Add account
node accounts.js add work <tenant-id> <client-id> <client-secret> you@work.com "Work account"

# Authenticate
node auth.js login --account=work

Add More Accounts

# Add personal account
node accounts.js add personal <tenant> <client> <secret> you@outlook.com "Personal"

# Add consulting account
node accounts.js add consulting <tenant> <client> <secret> you@client.com "Consulting"

# Set default
node accounts.js default work

# List all accounts
node accounts.js list

Use Your Accounts

# Check work calendar
node calendar.js today --account=work

# Read personal emails
node email.js recent 10 --account=personal

# Send from consulting account
node send-email.js send client@example.com "Subject" "Body" --account=consulting

Migrate from Single-Account Setup

Already using v1.0.0? No problem!

# Import your existing setup
node accounts.js import-legacy

# Continue using without changes (environment variables still work)
# OR add additional accounts
node accounts.js add secondary <tenant> <client> <secret>

Prerequisites

Before using this skill, you must complete the Azure App Registration setup to obtain:

  1. Tenant ID - Your Azure AD tenant identifier
  2. Client ID - Your application (client) ID
  3. Client Secret - Your application secret value

Setup time: ~10-15 minutes per account

See Setup Guide for complete step-by-step instructions.

Permission Validation

This skill requires the following delegated permissions (user consent required):

Email Permissions

  • Mail.Read - Read user email
  • Mail.ReadWrite - Read and write access to user email
  • Mail.Send - Send email as the user

Calendar Permissions

  • Calendars.Read - Read user calendars
  • Calendars.ReadWrite - Read and write access to user calendars

Contact Permissions

  • Contacts.Read - Read user contacts
  • Contacts.ReadWrite - Read and write access to user contacts

Profile Permissions (required for authentication)

  • User.Read - Sign in and read user profile
  • offline_access - Maintain access to data (refresh tokens)

IMPORTANT: Before proceeding with setup, confirm that you understand and approve these permissions. Each permission grants specific access to your Microsoft 365 data.

See Permissions Reference for detailed information about what each permission allows.

Configuration

Multi-Account Configuration (v2.0.0+)

Accounts are stored in ~/.openclaw/auth/office365-accounts.json with tokens in ~/.openclaw/auth/office365/.

Use the accounts.js CLI to manage:

node accounts.js list                # List all accounts
node accounts.js add <name> ...      # Add account
node accounts.js remove <name>       # Remove account
node accounts.js default <name>      # Set default

Legacy Single-Account (Backward Compatible)

Environment variables still work for single-account use:

export AZURE_TENANT_ID="your-tenant-id"
export AZURE_CLIENT_ID="your-client-id"
export AZURE_CLIENT_SECRET="your-client-secret"

Or in OpenClaw config:

{
  "env": {
    "vars": {
      "AZURE_TENANT_ID": "your-tenant-id",
      "AZURE_CLIENT_ID": "your-client-id",
      "AZURE_CLIENT_SECRET": "your-client-secret"
    }
  }
}

Authentication Flow

This skill uses OAuth 2.0 Device Code Flow for resilient authentication:

  1. Request device code from Microsoft
  2. Display user code and verification URL
  3. User visits URL and enters code
  4. Poll for token completion
  5. Store access + refresh tokens (per-account)
  6. Automatically refresh tokens when expired

Token storage: Tokens are securely stored in ~/.openclaw/auth/office365/<account-name>.json with mode 0600 (owner read/write only).

Usage Examples

Multi-Account Email Operations

# Read from default account
node email.js recent 10

# Read from specific account
node email.js recent 10 --account=work

# Search in consulting account
node email.js search "proposal" --account=consulting

# Send from appropriate identity
node send-email.js send client@example.com "Update" "..." --account=consulting

Multi-Account Calendar Operations

# Check work calendar
node calendar.js today --account=work

# Check personal calendar
node calendar.js week --account=personal

Account Management

# List all configured accounts
node accounts.js list

# Check authentication status
node auth.js status --account=work

# Re-authenticate if needed
node auth.js login --account=work

Real-World Use Cases

Multiple Work Identities

Perfect when working across multiple organizations:

# Morning: Check all calendars
node calendar.js today --account=work
node calendar.js today --account=consulting
node calendar.js today --account=startup

# Process emails by identity
node email.js recent --account=work
node email.js recent --account=consulting

# Send from appropriate account
node send-email.js send client@bigcorp.com "Proposal" "..." --account=work

Personal + Professional Separation

# Work hours: Work account
node calendar.js today --account=work
node email.js recent --account=work

# After hours: Personal account
node email.js recent --account=personal

Error Handling

The skill includes robust error handling for:

  • Token expiration - Automatic refresh with exponential backoff
  • Rate limiting - Retry logic with appropriate delays
  • Network errors - Connection timeout handling
  • Permission errors - Clear messages about missing scopes
  • API errors - Detailed error messages from Microsoft Graph
  • Account not found - Helpful error messages with suggestions

Rate Limits

Microsoft Graph API has rate limits:

  • Per-app limit: 130,000 requests per hour
  • Per-user limit: Variable based on workload
  • Throttling: 429 status code triggers automatic retry

The skill automatically handles throttling with exponential backoff.

Security Considerations

  1. Token Security: Tokens stored with restricted file permissions (0600)
  2. Per-Account Isolation: Each account has separate token storage
  3. Scope Limitation: Request only the minimum required permissions
  4. Refresh Tokens: Rotated automatically, old tokens invalidated
  5. Client Secret: Never logged or exposed; stored with mode 0600
  6. Multi-tenant: This setup is single-tenant (your organization only)

Troubleshooting

Multi-Account Issues

"No account specified and no default account set"

# Set a default account
node accounts.js default work

# Or always specify --account=
node calendar.js today --account=work

"Account not found"

# List available accounts
node accounts.js list

# Add the missing account
node accounts.js add <name> <tenant> <client> <secret>

Authentication expired

# Check status
node auth.js status --account=work

# Re-authenticate
node auth.js login --account=work

Common Issues

"AADSTS700016: Application not found in directory"

  • Verify Tenant ID matches your Azure AD tenant
  • Ensure app registration wasn't deleted

"AADSTS65001: User did not consent"

  • Complete the device code flow authentication
  • Check Admin Consent if required by organization

"AADSTS700082: Expired refresh token"

  • Re-authenticate using device code flow
  • Check token storage file permissions

"403 Forbidden"

  • Verify API permissions are granted in Azure
  • Check if admin consent is required

See Setup Guide and MULTI-ACCOUNT.md for detailed troubleshooting.

Limitations

  • Attachment size: Max 4MB per attachment (API limit)
  • Email recipients: Max 500 recipients per email
  • Calendar events: Limited to 1,095 days in the future
  • Batch operations: Max 20 requests per batch

Command Reference

Account Management

node accounts.js list                           # List all accounts
node accounts.js add <name> <tenant> <client> <secret> [email] [desc]
node accounts.js remove <name>                  # Remove account
node accounts.js default <name>                 # Set default
node accounts.js import-legacy                  # Import v1.0.0 setup

Authentication

node auth.js login [--account=name]            # Authenticate
node auth.js status [--account=name]           # Check status
node auth.js token [--account=name]            # Get access token

Email

node email.js recent [count] [--account=name]
node email.js search "query" [--account=name]
node email.js from email@domain [--account=name]
node email.js read <id> [--account=name]

Calendar

node calendar.js today [--account=name]
node calendar.js week [--account=name]

Send & Manage

node send-email.js send <to> <subject> <body> [--account=name]
node send-email.js reply <message-id> <body> [--account=name]
node cancel-event.js <event-id> [comment] [--account=name]

Resources

Documentation Files

Microsoft Resources

Credits

Original Skill: office365-connector v1.0.0 from ClawHub Community

Multi-Account Enhancement (v2.0.0): Matthew Gordon (matt@workandthrive.ai)

Thank you to Matthew Gordon for contributing the multi-account enhancement that makes this skill significantly more useful for consultants, freelancers, and anyone managing multiple work identities!

See CREDITS.md for complete attribution.

License

Maintains compatibility with the original skill's licensing. See CREDITS.md for details.

Source Transparency

This detail page is rendered from real SKILL.md content. Trust labels are metadata-based hints, not a safety guarantee.

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