How to change the sent mailbox folder behavior on an Apple iPhone

Follow the steps below to store sent messages in the default iPhone Mail app "Sent" folder for an IMAP email account.

iOS Version: 11.3.1+
  • Home Button
  • Settings
  • Passwords & Accounts
  • Select your email account
  • Select the displayed IMAP account
  • Advanced (Bottom of the screen)
  • Sent Mailbox (Mailbox Behaviors section)
  • Select the Sent Items (On the Server section)
  • < Advanced (Top of the screen)
  • < Account (Top of the screen)
  • Done (Top of the screen)
  • Close and restart the Mail app

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