If you quote text from the previous email history, it will be indented to mark it as a quote. This setting allows you to set
the extent of the quotes.
Tap the menu symbol in the menu bar.
The menu navigation will appear.
Tap Settings.
Tap Mail Settings.
Tap the activation button under
Quote level.
When the switch is active (right position, shown in green), the quote level is increased, i.e. the quoted text from the old
email is displayed indented.