Star a message
Starring messages is a good way to keep track of important messages, such as tasks you need to go back to or documents you reference often.
Hover over a message to replace the message's timestamp with its message actions, represented by three icons. From the icons that appear, select the star () icon.
After starring a message, a filled star () icon appears next to the timestamp of the message, confirming that the message has been starred.
You can click on the filled star () icon next to a starred message to unstar the message.
You can narrow your view to show all starred messages by searching for
messages with the search operator
is:starred or clicking on the
Starred Messages option on the left sidebar.