How can I delete numerous e-mail messages without deleting a page at a time (24 messages a page.) I have over 5,000 e-mail messages that I wish I could hit one button to delete them all at once. Any suggestions?

Check to see if the folder has an "empty" button.

Generally you can select the first one, then scroll to the bottom and Shift click on the last to select them all.

Depends on your e-mail client though