In Mail, unread messages display a blue dot and flagged messages display an orange dot.
Select theReplyicon, then chooseFlag.
A flagged email displays an orange dot next to it in the Inbox as well as in the message.
To find flagged email messages, go to the Mail homescreen and select theFlaggedfolder.
If you do not see theFlaggedfolder, selectEditand tick the check box next toFlagged.
Tick the check box next to all messages you’d like to mark, then chooseMark.
ChooseSelect Allto quickly select all the messages in a folder.
SelectFlagto add flags to the selected messages.
If the messages are flagged, tapUnflagto remove the flags.