Liam 
Addressing an email to a group of men ‘Gents,’
Addressing an Apostolic message on doctrine to the city of Rome, and to the world, ‘Gens,’
I have no idea whether women ever send email to groups of women and address it ‘Ladies,’ but if you do, I hope you hear as I do the Beastie Boys cowbell sample
addressing all the soldiers of the Fifth, for if you would shoot your Emperor, here I am 