PNG ICO ICNS MORE
UI
Pixel
Fugue Icons
receive, mail
SteelBlue
16x16
receive, send, mail
3D
Gnome Web Icons
Gnome, receive, mail
Gray
32x32
Gnome, receive, Transmit
network, Gnome, receive
48, Gnome, receive
48x48
receive, network, 48
network, Gnome, 48
PNG ICO MORE
send, 64, mail
Black
64x64
Gnome, network, 64
Gnome, 64, receive
Smooth
Corner Stone
receive
Gainsboro
Ultimate Gnome
Linen
256x256
Gnome icons
mail, receive, send
mail, receive
Tango
send, receive, mail
network, receive
Function icons
mail, Letter, receive
DarkGray