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The “View in Browser” feature allows email recipients to view your messages in their web browser. This is useful when:
  • Email clients don’t render the email correctly
  • Users want to see the full email without downloading images
  • Users are viewing emails on devices with limited rendering capabilities

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Prerequisites

This feature requires blob storage to be enabled. When an email is sent, the rendered HTML is stored in blob storage and can be accessed via a secure URL.

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Usage

Add the view_in_browser_url tag to your email template to generate a link: 
<a href="{% view_in_browser_url %}" target="_blank">View in browser</a>

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MJML Example

A common pattern is to place the view-in-browser link at the top of your email: 
<mjml>
  <mj-body>
    <mj-section>
      <mj-column>
        <mj-text align="center" color="#888888" font-size="12px">
          Having trouble viewing this email?
          <a href="{% view_in_browser_url %}" target="_blank">View in browser</a>
        </mj-text>
      </mj-column>
    </mj-section>

    <!-- Rest of your email content -->

  </mj-body>
</mjml>

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How It Works

  1. When an email is sent, the fully rendered HTML (with all user properties substituted) is stored in blob storage
  2. The view_in_browser_url tag generates a secure URL with a cryptographic hash
  3. When a recipient clicks the link, they’re taken to a page that displays the stored email HTML
  4. The URL is unique to each message and cannot be guessed or enumerated

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Security

  • Each view-in-browser URL contains a cryptographic hash that validates the request
  • URLs are specific to individual messages and cannot be used to access other users’ emails
  • The hash is generated using a workspace-specific secret

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Limitations

  • The URL will render an empty string in template previews (since no message has been sent yet)
  • Requires blob storage to be configured and enabled
  • The stored email reflects the content at the time of sending; subsequent template changes won’t affect previously sent emails