Frequently Asked Question

For iOS mail:

1. Tap Settings on the iPhone Home screen.
2. In iOS Mail 11, tap Accounts & Passwords. In iOS 10, select Mail and tap Accounts. In iOS Mail 9 and earlier, select Mail, Contacts, Calendars.
3. Tap the desired Exchange account in the Accounts section.
4. Now tap Mail Days to Sync.
5. Pick how many recent days of mail you want to be sent to iPhone Mail automatically. Choose No Limit to synchronize all mail.
6. Tap the Home button to save your preferences.

For Android mail:

1. Tap the email app
2. Tap MENU or three dots in upper right corner (this may differ depending on your model)
3. Tap Settings
4. Tap the email account you want to adjust
5. Tap Period to sync email
6. Select the time period over which you want your app to retain/display emails

Most mail apps will allow you to search for email if it is on the server but not on your handheld.