yes, but not always. usually it's something informal 'yo'. a good idea, regardless of salutations, is to gently focus your readers into your email. would you l

yes, but not always. usually it's something informal 'yo'. a good idea, regardless of salutations, is to gently focus your readers into your email. would you like it if someone immediately rushed into their idea? it'd be a little jarring. on the other hand, whatever. for short messages why clog the signal?