When another project participant sends mail, they can select an option from the Response required dropdown and set a date by which they need recipients to respond to the mail.

Mails that need your response will appear in your Tasks and Mail pages as either Outstanding or Overdue.

• Outstanding mail is mail that you need to respond to by a certain date.
• Overdue mail is mail that’s passed its Response required date, but which you haven’t responded to.

If you've been cc-ed or bcc-ed into a project mail that has a Response required date, this mail won't appear in your list of Outstanding or Overdue mail.

You can review the list of your items that require your action by double-clicking Tasks. See our article on Opening mail from the Tasks page for step-by-step help.