long live kmail

Wow, so I was just writing an email and in the body of the message i wrote "attached is a photo..." or something like that, and naturally I forget to attach anything.  So I click on SEND and suddenly my mail client, kMail, pops up a warning dialogue box telling me that my email seems to refer to an attachment but i have not yet attached anything...would I like to attach a file?  Wow.  How simple yet brilliant.  Attached is a screenshot of the very clever, very helpful dialogue box.  Long live KDE!  Long live kMail!