This is a very simple Azure Function example that allows you to send emails using an SMTP connection. It written using .NET 6 and uses the Mailkit nuget package.

• Make sure the .NET 6 SDK has been installed
• Make sure Azure Functions Core Tools has been installed (npm i -g azure-functions-core-tools@4 --unsafe-perm true)

Configure the following SMTP_ variables in your local.settings.json file (with your own SMTP credentials):

{
  // ...
  "Values": {
    // ...
    "SMTP_SERVER": "your_smtp_server",
    "SMTP_PORT": "587",
    "SMTP_SSL": "true",
    "SMTP_FROM": "your_name",
    "SMTP_USERNAME": "your_username",
    "SMTP_PASSWORD": "your_password"
  }
}

Then, run:

func start

It should give you the Azure Function url that you can call and probably looks something like this:

send_email: [POST] http://localhost:7071/api/send_email

Using your HTTP client of choice, post the following json data to the endpoint:

Note: you should be able to use HTML(!)

// POST: http://localhost:7071/api/send_email
{
    "To": "[email protected]",
    "Subject": "Hello from Azure Functions!",
    "Body": "<h1>An awesome email has arrived</h1> \n\n <p>This is a test email sent from an Azure Function using SMTP.</p>",
    "Important": true
}