PNG MORE
Files & folders
Pixel
ExplodingBoy Pixel Icons
mail
LightGray
20x20
PNG ICO ICNS MORE
Desktop apps
Handdrawn
Down to Earth
128x128
Mobile apps
Smooth
Android R2
512x512
PNG ICO MORE
UI
3D
Gnome Web Icons
mail, envelope, open
64x64
Photography & graphic design
Weaver Icon Set
mail, new
new, Check, mail
send, mail
Computer & hardware
Crystal Project
new, mail
22x22
Dark Glass
Appt, mail
Airmail, Find, mail
mail, delete
mail, Forward
mail, Get
mail, send
Linspire Clear