1. From the Home screen, tap Settings.
   
2. Tap Mail, Contacts, Calendars.
   
3. Adjust the settings as desired.
   
4. All accounts:
   Add Account
   Fetch New Data
   Preview (Number of lines to preview in Inbox)
   Show To/CC label
   Swipe Options
   Flag Style
   Ask Before Deleting
   Load Remote Images
   Organize by Thread
   Always Bcc Myself
   Mark Addresses
   Increase Quote Level
   Signature
   Default Account
   
   
5. Single account: From Mail, Contacts, Calendars, choose the account to adjust, and then manage the settings as desired.
   Note: Options may vary based on the configured account types.
   
6. Account
   * Email
   * Password
   * Description
   * Advanced Settings
   Mail
   Contacts
   Calendars
   Reminders
   Mail Days to Sync
   Delete Account