PNG ICO ICNS MORE
UI
Pixel
Gnome icons
mail, Move
Black
24x24
open, multiple, mail
open, mail
48x48
mail, receive
mail, replied
unread, mail, multiple
send, mail
stock, mail
unread, mail
mail, sent
46x47
Tango
Sender, mail, reply
32x32
send, receive, mail
mail, Attachment
PNG MORE
Mixed
Twotiny
Evelope, Lock, mail
16x16