Apple's short messages are not all deleted.

1. Click the SMS icon on the mobile phone desktop to enter the SMS interface.

2. Click Edit in the upper left corner to enter the SMS management interface.

3. Select the email to be deleted, tick the circle in front of the email, and click Delete in the lower right corner.

Method 2: Delete through Apple's built-in SMS retention time setting.

1. Click Settings-Mobile Information to enter the information setting page.

2. Find the information history at the bottom of the interface, and click Save Information to set the time.