It’s common that we miss to follow up certain mails which we send after couple of days. If you receive hundreds of emails in a day, it is hard to remember those follow up required emails unless it’s organized well. Google introduces a new feature and using this you can organize your emails before sending them by starring them or adding a label. It makes easy to keep a track of your sent messages.
When composing a new message, you can assign labels or star it by using the labels drop-down menu.