You can find stats for your email campaigns in Analytics > Campaigns > Email messages. This page includes the following data: emails sent, delivered, opened, clicked, bounced, unsubscribed from and complained from.
The main bar chart shows emails sent, opened and clicked over time (the controls on the top right of the page can be used to filter the data by different time ranges).
Totals and calculated percentages for open rate and click rate can be seen below the chart and downloaded by clicking on the download button .
Updated over 1 year ago