Notification Templates

This section contains reference documentation for Authelia's notification templates.

Authelia uses templates to generate the HTML and plaintext emails sent via the notification service. Each template has two extensions; .html for HTML templates, and .txt for plaintext templates.

This guide effectively documents the usage of the template_path notification configuration option.

Important Notes

  1. The templates are not covered by our stability guarantees. While we aim to avoid changes to the templates which would cause users to have to manually change them changes may be necessary in order to facilitate bug fixes or generally improve the templates.
    1. This is especially important for the Envelope Template.
    2. It is your responsibility to ensure your templates are up to date. We make no efforts in facilitating this.
  2. We may not be able to offer any direct support in debugging these templates. We only offer support and fixes to the official templates.
  3. All templates MUST be encoded in UTF-8 with CRLF line endings. The line endings MUST NOT be a simple LF.

Template Names

IdentityVerificationUsed to render notifications sent when registering devices or resetting passwords
PasswordResetUsed to render notifications sent when password has successfully been reset

For example, to modify the IdentityVerification HTML template, if your template_path was configured as /config/email_templates, you would create the /config/email_templates/IdentityVerification.html file to override the HTML IdentityVerification template.

Placeholder Variables

In template files, you can use the following placeholders which are automatically injected into the templates:

{{ .LinkURL }}IdentityVerificationThe URL associated with the notification if applicable.
{{ .LinkText }}IdentityVerificationThe display value for the URL associated with the notification if applicable.
{{ .Title }}AllA predefined title for the email.
It will be "Reset your password" or "Password changed successfully", depending on the current step.
{{ .DisplayName }}AllThe name of the user, i.e. John Doe
{{ .RemoteIP }}AllThe remote IP address (client) that initiated the request or event.


This is a basic example:

  <h1>{{ .Title }}</h1>
  Hi {{ .DisplayName }}<br/>
  This email has been sent to you in order to validate your identity.
  Click <a href="{{ .LinkURL }}">here</a> to change your password.

Some Additional examples for specific purposes can be found in the examples directory on GitHub.

Envelope Template

Important Note: This template must end with a CRLF newline. Failure to include this newline will result in malformed emails.

There is also a special envelope template. This is the email envelope which contains the content of the other templates when sent via the SMTP notifier. It’s strongly recommended that you do not modify this template unless you know what you’re doing. If you really want to modify it the name of the file must be Envelope.tmpl.

This template contains the following placeholders which are automatically injected into the template:

{{ .ProcessID }}The Authelia Process ID.
{{ .UUID }}A string representation of a UUID v4 generated specifically for this email.
{{ .Host }}The configured host.
{{ .ServerName }}The configured TLS server_name.
{{ .SenderDomain }}The domain portion of the configured sender.
{{ .Identifier }}The configured identifier.
{{ .From }}The string representation of the configured sender.
{{ .To }}The string representation of the recipients email address.
{{ .Subject }}The email subject.
{{ .Date }}The time.Time of the email envelope being rendered.

Original Templates

The original template content can be found on GitHub.