Several types of data are aggregated in email marketing, including:
Open Rates: The percentage of recipients who open the email. Click-Through Rates: The percentage of recipients who click on links within the email. Conversion Rates: The percentage of recipients who take a desired action after clicking through the email. Bounce Rates: The percentage of emails that could not be delivered to the recipient's inbox. Unsubscribe Rates: The percentage of recipients who opt-out from future emails.