> For the complete documentation index, see [llms.txt](https://docs.emaillabs.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.emaillabs.io/en/email/email-api/settings/smtp-accounts/open-tracking.md).

# Open Tracking

The 'Open Tracking' feature allows you to monitor whether and when email messages have been opened by recipients. This function helps track recipient engagement and their responses to your communications, aiding in the assessment of campaign effectiveness and in tailoring content to meet audience preferences.