Unread email messages display in bold in your inbox.
If you're viewing the unified inbox of all your email accounts, color bars also appear next to unread email messages. The color bars also indicate the email account from where the email message is received.
To group all unread email messages, add the
Unread tab to your inbox.
Switch to the email account you want to use.
In the inbox, tap
Press and hold
Unread, and then drag it to the bottom row to add.
Press Unread tab.
, and then tap the