Authenticate email to send mails office 365

To authenticate an email to send emails using Office 365, you'll need to use the following settings:

Authentication Method: Office 365 uses OAuth 2.0 as the default authentication method. This method is more secure and recommended.

Step 1: Create an App Registration in Azure AD

1. Go to the Azure portal (https://portal.azure.com) and sign in with your Office 365 admin credentials.
2. Click on "Azure Active Directory" and then "App registrations" in the left-hand menu.
3. Click on "New registration" and fill in the required information:
   • Name: Give your app a name (e.g., "My Email Client").
   • Redirect URI: Leave this blank (we'll use a different authentication flow).
   • Supported account types: Select "Accounts in any organizational directory (Any Azure AD directory - Multitenant)".
4. Click "Register" to create the app registration.

Step 2: Grant Permissions

1. In the Azure portal, navigate to the "API permissions" tab for your app registration.
2. Click on "Add a permission" and search for "Office 365 Mail".
3. Select "Office 365 Mail" and click "Add permission".
4. Grant the "Mail.Read" and "Mail.Send" permissions.

Step 3: Create a Client Secret

1. In the Azure portal, navigate to the "Certificates & secrets" tab for your app registration.
2. Click on "New client secret" and enter a description for the secret.
3. Click "Add" to create the client secret.

Step 4: Configure Your Email Client

1. In your email client (e.g., Python script, C# application, etc.), you'll need to use the following settings:
   • Tenant ID: The tenant ID of your Office 365 organization (found in the Azure portal).
   • Client ID: The client ID of your app registration (found in the Azure portal).
   • Client Secret: The client secret you created in Step 3.
   • Resource: "https://graph.microsoft.com/"
   • Scope: "https://graph.microsoft.com/.default"
2. Use the requests library in Python or equivalent libraries in other languages to send an HTTP request to the Microsoft Graph API to authenticate and obtain an access token.

Here's an example Python code snippet using the requests library:

import requests
import json

# Replace with your Office 365 tenant ID
tenant_id = "your_tenant_id"

# Replace with your app registration client ID
client_id = "your_client_id"

# Replace with your app registration client secret
client_secret = "your_client_secret"

# Set the resource and scope
resource = "https://graph.microsoft.com/"
scope = "https://graph.microsoft.com/.default"

# Authenticate and obtain an access token
auth_url = f"https://login.microsoftonline.com/{tenant_id}/oauth2/v2.0/token"
headers = {"Content-Type": "application/x-www-form-urlencoded"}
data = {
    "grant_type": "client_credentials",
    "client_id": client_id,
    "client_secret": client_secret,
    "resource": resource,
    "scope": scope
}
response = requests.post(auth_url, headers=headers, data=data)
access_token = json.loads(response.text)["access_token"]

# Use the access token to send an email
email_url = "https://graph.microsoft.com/v1.0/me/sendMail"
headers = {"Authorization": f"Bearer {access_token}", "Content-Type": "application/json"}
data = {
    "message": {
        "subject": "Test email",
        "body": {
            "content": "This is a test email",
            "contentType": "Text"
        },
        "toRecipients": [
            {
                "emailAddress": {
                    "address": "[email protected]"
                }
            }
        ]
    }
}
response = requests.post(email_url, headers=headers, json=data)

Note that this is just a basic example, and you may need to modify the code to suit your specific requirements. Additionally, you should handle errors and exceptions properly in your production code.