How to Remove an Email Account from iPhone
Removing an email account from the Mail app is arguably the simplest way how to instantly mass delete emails on iPhone. Yes, this option is what some would call “nuclear” as it means that you will no longer be able to receive new emails.
How to Delete Emails on iPhone Individually
Although being very time-consuming, removing emails individually gives you the most control over which emails you keep and which you remove. This method is best for those with relatively small inboxes, but we wouldn’t recommend it for anyone else. Today. There are much better ways how to delete emails on iPhone, including those described later in this article. But if you want to prune your inbox one-by-one, this is how to do it:
How to Delete Multiple Emails on iPhone
Usually, it’s easy to tell which emails can be deleted just by reading the subject. If your inbox consists of a mix of personal conversations and marketing garbage, you might find it useful to know how to delete multiple emails at once:
This will move your emails to the Trash folder. To delete them from the Trash folder, navigate to it and repeat the process. Yes, this means that you have to repeat the same procedure twice, but the second round should be quicker since the Trash folder contains only the email you wish to delete.
Read the full article: https://clean.email/how-to-delete-all-emails-on-iphone