• If you have multiple email accounts on your Apple iPhone 6S, you can set one as the default account for sending email.
  • 1. Touch Settings.
  • 2. Scroll to and touch Mail, Contacts, Calendars.
  • 3. Scroll to and touch Default Account.
  • 4. Touch the desired account.
  • 5. Touch Mail…
  • 6. The default email account has been set.
  • Note: You can still send email from other accounts; you can choose the "from" account when composing individual messages.