Some emails are more important than others. That's why the "auto-detect high urgency" feature automatically marks outgoing messages as a high priority if there are terms as "important, urgent, critical, emergency, time-sensitive" in the subject line. The app comes with this feature enabled. If you wish to disable this feature, here's how:
1.Tap the Nav icon at the top left corner of the Nav Bar to display the Navigation Drawer.
2.Tap the Gear icon at the bottom of the Navigation Drawer to bring up Settings.
3. Tap Mail.
4. Under the Compose section, tap the Auto-detect High Urgency box to disable this feature.