Date of Last Email Magic Column
Now that you've read about Magic Columns and how to add them to your Pipeline, one of the coolest Magic Columns is the one called "Date of Last Email". This column shows the date of the most recent email, either sent or received, in the Box.
To get started add an email thread to the Box. Once the email thread is added to the Box your pipeline will show the Date of Last Email.
If you want specifically when you last received an email use Date of Last Received Email. When you last sent an email use Date of Last Sent Email.
There's also the reverse: Date of First Email, Date of First Sent Email, and Date of First Received Email.