That might be the reason why another Outlook version does not have any content.
The exception is if you use a POP3 email account and set it up so that messages are automatically deleted from the server.
Remember this will hide your purchases and we cannot provide a guide on how to delete your purchase history on iPhone, as Apple removed this option from the App Store. Hope you can solve this issue, many thanks. when i click the box to delete, it just opens the email to read.