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

Follow the steps below to store deleted messages in the default iPhone Mail app "Trash" 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)
  • Deleted Mailbox (Mailbox Behaviors section)
  • Select the Deleted 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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