Deleting a large number of entries from the queue is a real pain. Push the red minus icon, push delete. Repeat. Repeat. Argh! Using a multi-select interface like the standard iOS mail app where you select multiple items and then press Delete once would be a much better approach.
This topic has been closed for further comments. You can use the search bar to find a similar topic, or create a new one by clicking Create Topic at the top of the page.