How to Empty Trash on iPhone Mail

Just like on a computer, sending an email to the trash on an iPhone doesn't actually delete it. The email remains in the Trash folder, where it occupies storage space and where it can be opened again. To permanently delete the emails on an iPhone you have to manually empty the folder from time to time.

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Emptying the trash on an iPhone takes just a few taps.

Step

Tap on the name of an email account in the Mail app.

Step

Tap the "Trash" icon.

Step

Tap the "Edit" icon in the top right corner of the screen, above the list of trashed items.

Step

Choose "Delete All" from the bottom of the screen. Tap "Delete All" again to confirm your choice.