Enable an “Unread” Email Message Inbox in Mail for iOS
1. Open the Mail app in iOS if you haven’t done so already and go to the primary mailbox screen
2. Tap on the “Mailboxes” button in the upper left corner
3 . At the mailboxes screen, tap on “Edit” in the upper right corner
Locate the “Unread” mailbox and tap on it so that the blue checkbox alongside is checked, then tap on “Done”
Still in the Mailboxes screen, now tap on “Unread” to open the Unread email only inbox view
This will open a special email inbox that only shows the unread messages in Mail app on the iPhone, iPad, or iPod touch, making it a very efficient way to manage an unruly inbox and triage unread messages faster.
You can return to the normal “everything” inbox by returning back to the “Mailboxes” view and choosing “All Inboxes” again, or selecting an individual email account, or another mailbox, as desired.