SMTP


The smtp platform allows you to deliver notifications from Home Assistant to an e-mail recipient.

To enable notification by e-mail in your installation, add the following to your configuration.yaml file:

# Example configuration.yaml entry
notify:
  - name: NOTIFIER_NAME
    platform: smtp
    sender: YOUR_SENDER
    recipient: YOUR_RECIPIENT

Configuration variables:

A sample configuration entry for Google Mail.

# Example configuration.yaml entry
notify:
  - name: NOTIFIER_NAME
    platform: smtp
    server: smtp.gmail.com
    port: 587
    timeout: 15
    sender: [email protected]
    encryption: starttls
    username: [email protected]
    password: thePassword
    recipient:
      - [email protected]
      - [email protected]
    sender_name: My Home Assistant

Keep in mind that Google has some extra layers of protection which need special attention (Hint: ‘Less secure apps’). If you have 2-step verification enabled on your Google account, you’ll need to use an application-specific password.

To use the SMTP notification, refer to it in an automation or script like in this example:

  burglar:
    alias: Burglar Alarm
    sequence:
      - service: shell_command.snapshot
      - delay:
            seconds: 1
      - service: notify.NOTIFIER_NAME
        data:
            title: 'Intruder alert'
            message: 'Intruder alert at apartment!!'
            data:
                images:
                    - /home/pi/snapshot1.jpg
                    - /home/pi/snapshot2.jpg

The optional images field adds in-line image attachments to the email. This sends a text/HTML multi-part message instead of the plain text default.

The optional html field makes a custom text/HTML multi-part message, allowing total freedom for sending rich html emails. In them, if you need to attach images, you can pass both arguments (html and images), the attachments will be joined with the basename of the images, so they can be included in the html page with src="cid:image_name.ext".

  burglar:
    alias: Burglar Alarm
    sequence:
      - service: shell_command.snapshot
      - delay:
            seconds: 1
      - service: notify.NOTIFIER_NAME
        data_template:
            message: 'Intruder alert at apartment!!'
            data:
              images:
                - /home/pi/snapshot1.jpg
                - /home/pi/snapshot2.jpg
              html: >
                <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
                <html lang="en" xmlns="http://www.w3.org/1999/xhtml">
                    <head>
                        <meta charset="UTF-8">
                        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
                        <meta name="viewport" content="width=device-width, initial-scale=1.0">
                        <title>Intruder alert</title>
                        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.5/css/bootstrap.min.css">
                        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css">
                        <style type="text/css">
                            @font-face {
                              font-family: 'Open Sans';
                              font-style: normal;
                              font-weight: 300;
                              src: local('Open Sans Light'), local('OpenSans-Light'), url(http://fonts.gstatic.com/s/opensans/v13/DXI1ORHCpsQm3Vp6mXoaTZS3E-kSBmtLoNJPDtbj2Pk.ttf) format('truetype');
                            }
                            h1,h2,h3,h4,h5,h6 {
                                font-family:'Open Sans',Arial,sans-serif;
                                font-weight:400;
                                margin:10px 0
                            }
                        </style>
                    </head>
                    <body>
                      <div class="jumbotron jumbotron-fluid" style="background-color: #f00a2d; color: white;">
                          <div class="container py-0">
                              <h1>Intruder alert at apartment!!</h1>
                          </div>
                      </div>
                      <div class="container-fluid">
                        <div class="row">
                          <div class="col-xs-12 col-md-6 px-0">
                            <img class="rounded" style="width: 100%;"
                                alt="snapshot1" src="cid:snapshot1.jpg" />
                          </div>
                          <div class="col-xs-12 col-md-6 px-0">
                            <img class="rounded" style="width: 100%;"
                                alt="snapshot2" src="cid:snapshot2.jpg" />
                          </div>
                        </div>
                        <br>
                      </div>
                    </body>
                    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
                    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.5/js/bootstrap.min.js"></script>
                </html>

Obviously, this kind of complex html email reporting is done much more conveniently using Jinja2 templating from an AppDaemon app, for example.

This platform is fragile and not able to catch all exceptions in a smart way because of the large number of possible configuration combinations.

A combination that will work properly is port 587 and STARTTLS. It’s recommended to enable STARTTLS, if possible.

Keep in mind that if the password contains a colon, it needs to be wrapped in apostrophes in the configuration.yaml file.

For Google Mail (smtp.gmail.com) an additional step in the setup process is needed. Google has some extra layers of protection which need special attention. By default, the usage by external applications, especially scripts, is limited. Visit the Less secure apps page and enable it.

To use notifications, please see the getting started with automation page.