Deleting emails

Hello Astral0654,

To help us better assist you, can you let us know more about the behavior you're experiencing? For example, are deleted emails returning after a certain amount of time? Is this happening in the Apple Mail app, or another email application?

The above details will help us plan how to proceed.

Please also check out the information in this link to ensure the correct process is being used to delete emails, so we can make sure that's not part of the issue: Delete emails on your iPhone or iPad

"Delete multiple emails at once 

1. Open Mail and go to your Inbox.
2. Tap Edit in the upper-right corner, then individually select the emails that you want to delete, or tap Select All. To select multiple emails quickly, swipe down through the checkboxes.
3. Tap Trash or Archive. If you only see Archive, touch and hold Archive to see other options like Trash Selected Messages.

To delete a large number of emails, you might find it easier to use your email provider's website."

Thanks!