Outlook Graph

Outlook Graph Skill

When to Use

• Sending estimates or invoices to customers via email
• Reading incoming leads or referrals from Outlook inbox
• Scheduling service jobs on calendar
• Looking up contact info for partners or customers
• Sending payment links (from stripe-payments skill) to customers
• Daily report emails to the owner

⚠️ Before You Begin: Verify This Is Actually M365

"Uses Outlook" ≠ "Has Microsoft 365." Many small businesses use the Outlook desktop app as an IMAP client connected to a third-party email host (GoDaddy Workspace Email, Rackspace, etc.). Before starting the Azure AD setup:

1. Try signing in at portal.azure.com with the business email address.

If it says "account not found," the email is NOT on M365 — stop here.

1. Check where the domain's email is hosted: look at MX records

(dig MX domain.com), or check the domain registrar's email product page (e.g., GoDaddy → My Products → Email section).

1. If the email is hosted on GoDaddy Workspace Email or another IMAP

provider, use the himalaya skill (IMAP/SMTP) instead of this skill. Common GoDaddy IMAP settings: imap.secureserver.net:993 TLS, smtpout.secureserver.net:465 TLS.

1. GoDaddy-resold M365 also exists — the mailbox IS on Microsoft's servers

but managed through GoDaddy's portal, not Azure directly. In that case, this skill may work but app registration must be done through the GoDaddy M365 admin portal, not portal.azure.com directly.

This skill only applies to businesses with a real Microsoft 365 / Azure AD tenant where portal.azure.com accepts the business email login.

Prerequisites

• Microsoft 365 tenant with Outlook (verified per the check above)
• Azure AD app registration (Application (client) ID, client secret)
• API permissions: Mail.ReadWrite, Mail.Send, Calendars.ReadWrite, Contacts.Read
• Environment variables: MS_TENANT_ID, MS_CLIENT_ID, MS_CLIENT_SECRET, MS_USER_EMAIL

Setup

1. Register Azure AD App

1. Go to Azure Portal (portal.azure.com) > Azure Active Directory > App Registrations
2. Click "New registration"
3. Name: "[BUSINESS_NAME] Agent"
4. Supported account types: "Accounts in this organizational directory only"
5. Redirect URI: leave blank (using client credentials flow)
6. Click Register

2. Get Client ID and Secret

1. Copy "Application (client) ID" -> this is MS_CLIENT_ID
2. Certificates & Secrets > New client secret
3. Copy the secret VALUE (not ID) -> this is MS_CLIENT_SECRET

3. Get Tenant ID

1. Overview page > Copy "Directory (tenant) ID" -> this is MS_TENANT_ID

4. Set API Permissions

1. API Permissions > Add a permission > Microsoft Graph > Application permissions
2. Add: Mail.ReadWrite, Mail.Send, Calendars.ReadWrite, Contacts.Read
3. Click "Grant admin consent" for each

5. Store Credentials

Add to ~/.hermes/.env:

MS_TENANT_ID=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
MS_CLIENT_ID=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
MS_CLIENT_SECRET=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
MS_USER_EMAIL=owner@yourdomain.com

API Reference

Base URL: https://graph.microsoft.com/v1.0

Get Access Token

TOKEN=$(curl -s https://login.microsoftonline.com/$MS_TENANT_ID/oauth2/v2.0/token \
  -H "Content-Type: application/x-www-form-urlencoded" \
  -d "client_id=$MS_CLIENT_ID" \
  -d "client_secret=$MS_CLIENT_SECRET" \
  -d "scope=https://graph.microsoft.com/.default" \
  -d "grant_type=client_credentials" \
  | python3 -c "import sys,json; print(json.load(sys.stdin)['access_token'])")

Send Email

curl -s "https://graph.microsoft.com/v1.0/users/$MS_USER_EMAIL/sendMail" \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "message": {
      "subject": "Your [BUSINESS_NAME] Estimate",
      "body": {
        "contentType": "HTML",
        "content": "[BUSINESS_NAME]Dear John,Your estimate for service is $2,800.Payment link: Pay NowQuestions? Call [PHONE]"
      },
      "toRecipients": [
        {"emailAddress": {"address": "customer@example.com"}}
      ]
    },
    "saveToSentItems": true
  }'

Read Inbox (Recent Emails)

curl -s "https://graph.microsoft.com/v1.0/users/$MS_USER_EMAIL/messages?\$top=10&\$select=subject,from,bodyPreview,receivedDateTime" \
  -H "Authorization: Bearer $TOKEN" | python3 -m json.tool

Search Inbox for Leads

curl -s "https://graph.microsoft.com/v1.0/users/$MS_USER_EMAIL/messages?\$search=\"service+estimate\"&\$top=5" \
  -H "Authorization: Bearer $TOKEN" | python3 -m json.tool

Reply to Email

curl -s "https://graph.microsoft.com/v1.0/users/$MS_USER_EMAIL/messages/$MESSAGE_ID/reply" \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"comment":"Thank you for your interest! I can come out Tuesday at 10am for a free estimate. Does that work?"}'

Create Calendar Event (Schedule a Job)

curl -s "https://graph.microsoft.com/v1.0/users/$MS_USER_EMAIL/calendar/events" \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "subject": "[BUSINESS_NAME] - Smith Residence - Service",
    "body": {"contentType": "HTML", "content": "Customer: John SmithAddress: 123 Main St, [CITY], [STATE]Service: Residential service 2000sqftEstimate: $2,800"},
    "start": {"dateTime": "2026-06-28T09:00:00", "timeZone": "Eastern Standard Time"},
    "end": {"dateTime": "2026-06-28T13:00:00", "timeZone": "Eastern Standard Time"},
    "location": {"displayName": "123 Main St, [CITY], [STATE] [ZIP]"},
    "attendees": [{"emailAddress": {"address": "customer@example.com", "name": "John Smith"}, "type": "required"}]
  }'

List Calendar Events (Upcoming)

curl -s "https://graph.microsoft.com/v1.0/users/$MS_USER_EMAIL/calendar/events?\$top=10&\$select=subject,start,end,location&\$orderby=start/dateTime" \
  -H "Authorization: Bearer $TOKEN" | python3 -m json.tool

List Contacts

curl -s "https://graph.microsoft.com/v1.0/users/$MS_USER_EMAIL/contacts?\$top=50&\$select=displayName,emailAddresses,phones" \
  -H "Authorization: Bearer $TOKEN" | python3 -m json.tool

Create Contact

curl -s "https://graph.microsoft.com/v1.0/users/$MS_USER_EMAIL/contacts" \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "displayName": "John Smith - Partner",
    "emailAddresses": [{"address": "john@example.com", "name": "John Smith"}],
    "phones": [{"number": "555-555-1234", "type": "mobile"}],
    "companyName": "Example Realty Group",
    "categories": ["Partner", "Referral Source"]
  }'

Forward Email (to the owner)

curl -s "https://graph.microsoft.com/v1.0/users/$MS_USER_EMAIL/messages/$MESSAGE_ID/forward" \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"toRecipients":[{"emailAddress":{"address":"owner@yourdomain.com"}}],"comment":"New lead from partner - can you follow up?"}'

Integration Patterns

Pattern 1: New Lead Intake (Email -> CRM -> Estimate)

1. Agent reads inbox, finds new email from partner
2. Agent extracts lead info (name, address, sqft, service type)
3. Agent creates lead record in CRM (crm-lite)
4. Agent runs estimator-engine to calculate price
5. Agent replies with estimate and asks for preferred dates

Pattern 2: Estimate -> Payment Flow

1. Agent sends estimate email with payment link (from stripe-payments skill)
2. Agent monitors inbox for reply or payment confirmation
3. When paid, agent creates calendar event for the job
4. Agent updates CRM lead status to "Booked"

Pattern 3: Partner Outreach Campaign

1. Agent reads Mailchimp partner contact list
2. For each partner, agent sends personalized email from Outlook
3. Agent logs activity in CRM
4. Agent schedules follow-up reminders as calendar events

Pattern 4: Daily Report to Owners

1. Agent compiles CRM stats (new leads, estimates sent, jobs booked, payments received)
2. Agent sends daily summary email to the owner
3. Could be automated via cron job

Token Management

Tokens expire after ~1 hour. For cron jobs, fetch fresh token each run:

import os, requests, json

def get_token():
    r = requests.post(
        f"https://login.microsoftonline.com/{os.environ['MS_TENANT_ID']}/oauth2/v2.0/token",
        data={
            "client_id": os.environ["MS_CLIENT_ID"],
            "client_secret": os.environ["MS_CLIENT_SECRET"],
            "scope": "https://graph.microsoft.com/.default",
            "grant_type": "client_credentials",
        }
    )
    return r.json()["access_token"]

When NOT to Use This Skill (Critical Diagnostic)

• "Uses Outlook" ≠ "Has Microsoft 365". Many small businesses use the Outlook

desktop app as an IMAP client for third-party email hosting (GoDaddy Workspace Email, Google Workspace, etc.). The mailbox lives on the third-party's servers, not Microsoft's. The Outlook app is just a client.

• Diagnostic test: Try signing in at portal.azure.com with the business email

address. If Microsoft says "We couldn't find an account with that username," the email is NOT on M365 — this skill does not apply. Use IMAP/SMTP via the himalaya skill instead.

• GoDaddy Workspace Email is the most common case for US small businesses.

Standard settings: IMAP imap.secureserver.net:993 TLS, SMTP smtpout.secureserver.net:465 TLS. Login is the email address + the email password (not the GoDaddy account login ID).

• This skill remains valid for businesses with a real M365 tenant (Azure AD,

Exchange Online, or GoDaddy-resold M365 where the mailbox IS on Microsoft servers but billing goes through GoDaddy). When in doubt, check the Azure portal first before starting the app registration.

Common Pitfalls

• Client credentials flow = app-only access: No user must sign in, but admin must grant consent
• $ in URL query params: Must be escaped in bash as \$ to prevent variable expansion
• Token expiry: 60 min lifetime — refresh for long-running operations
• Email body HTML: Use contentType "HTML" for formatted emails, "Text" for plain
• Timezone in calendar events: Use the appropriate timezone string for your region (e.g., "Eastern Standard Time" handles EDT/EST automatically)
• Graph API throttling: 10,000 requests/10min per app per tenant — more than enough
• SaveToSentItems: Set to true so owners can see what the agent sent
• User email in URL path: Must be the actual mailbox email, not the app registration email
• Attachments: Not covered here — if needed, use multipart with /messages/{id}/attachments

Verification Checklist

• [ ] MSTENANTID, MSCLIENTID, MSCLIENTSECRET set in environment
• [ ] MSUSEREMAIL set to business Outlook address
• [ ] Can get access token (client credentials flow)
• [ ] Can read inbox (GET messages)
• [ ] Can send test email (POST sendMail)
• [ ] Can create calendar event
• [ ] Can list contacts
• [ ] Admin consent granted for all API permissions
• [ ] Email integration with stripe-payments (send payment links)
• [ ] Email integration with crm-lite (log sent emails as activities)

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: hewi333
• Source: hewi333/Mom-n-Pop-Skills
• License: MIT

Install and usage instructions live in the source repository linked above.