clean- and fasten-up mail.app

“Mac OS X comes with a very usable e-mail client called Mail.app or simply Mail, but it tends to slow down a bit over time, especially when moving around large amounts of e-mails from multiple accounts. This guide will help you optimize the performance of Mail.”[forever for now]

“Optimizing Mail’s Envelope Index is very simple. Quit Mail and type in to terminal:”
sqlite3 ~/Library/Mail/Envelope\ Index vacuum

what is this action doing?

Since i have done this little hack, my mail is running a bit faster!! it works!!

thanks to forever for now