We track when your email newsletter subscribers:
The last_engagement_time means the last time a subscriber did either of those 2 things.
We started tracking this data in November 2013 so it won't go back further than that.
It's not a perfect system and doesn't capture every single data point, but it will give you an idea of who is engaging with your newsletter and who may not be.
Last engagement time info only shows if you have enabled Double Opt-In on your newsletter.
To see last_engagement_time:
You'll see something like this:
Our world-class customer care team is here for youContact Support