Azure smtp mail server

Azure provides a managed SMTP service that allows you to send and receive emails using your custom domain. Here are the steps to set up an Azure SMTP mail server:

Prerequisites:

  1. An Azure subscription
  2. A custom domain (e.g., example.com)
  3. DNS settings configured for your custom domain

Step 1: Create an Azure SMTP relay

  1. Log in to the Azure portal (https://portal.azure.com/)
  2. Navigate to the "Azure Active Directory" section
  3. Click on "App registrations" and then click on "New registration"
  4. Enter a name for your app registration (e.g., "SMTP Relay")
  5. Select "Web" as the platform and enter a redirect URI (e.g., https://example.com)
  6. Click on "Register" to create the app registration
  7. Note the "Client ID" and "Tenant ID" values, you'll need them later

Step 2: Configure DNS settings

  1. Update your DNS settings to point to the Azure SMTP relay
  2. Create a new TXT record with the name "_msftncsi" and the value "blank" (no spaces)
  3. Create a new MX record with the name "smtp" and the value "smtp-relay.microsoft.com"
  4. Create a new CNAME record with the name "smtp" and the value "smtp-relay.microsoft.com"

Step 3: Configure Azure SMTP relay

  1. Navigate to the "Azure Active Directory" section
  2. Click on "App registrations" and then click on the app registration you created earlier
  3. Click on "API permissions" and then click on "Add a permission"
  4. Select "Microsoft Graph" as the API and "SMTP" as the permission
  5. Click on "Add permission" to grant the permission
  6. Note the "Client secret" value, you'll need it later

Step 4: Configure your email client

  1. Configure your email client (e.g., Outlook, Thunderbird) to use the Azure SMTP relay
  2. Set the SMTP server to "smtp-relay.microsoft.com"
  3. Set the port to 587 (or 25 if you're using a legacy email client)
  4. Set the username to the email address you want to use (e.g., [email protected])
  5. Set the password to the client secret value you noted earlier

Step 5: Test your Azure SMTP mail server

  1. Send an email from your email client to a test email address (e.g., [email protected])
  2. Verify that the email is delivered successfully

That's it! You now have a working Azure SMTP mail server. Note that you may need to configure additional settings depending on your specific use case (e.g., SPF, DKIM, etc.).