Email flag
You can now flag your emails in the Email app. This is a powerful tool to keep track of your messages.
First go to the Email app in your Workspace. After this, select the email you want to flag and click on the "Flag" button:
You will see now a flag icon on the mail you choose:
You can also unflag them in the same way to choose the email and click after that to "Unflag":
You can also select multiple emails and (un)flag them. To do this hold the CTRL button and select the emails.