That’s great, David, especially for those oldies among us who have gazillions of mails
As for deleting – I discovered a shortcut recently: find one you want to delete, click on Delete (at this point the page defaults back to the most recent mails – which is why it’s so bloody frustrating when you're trying to get rid of the old stuff!).
Click on your Back button. The mail you wanted to delete will still appear but, trust me, it’s gone. Repeat the process as many times as you want. Then go for a lie down.
This is only a stop-gap suggestion until the lovely DB gives us a mass-destruct button.
Dee