Message Opened Webhook

Triggered when the recipient opens your email.

Requirements:

• Open tracking must be enabled for your account or this specific email
• The email must contain HTML content
• The recipient’s email client must load images

Additional Data: This webhook includes user agent and IP address information for analytics.

Bot Detection: The is_bot field indicates whether the open was detected as automated (email security scanners, etc.).

When it’s sent: When the tracking pixel in the email is loaded.