PNG ICO ICNS MORE
Business & finance
Smooth
Primo
inbox
DarkGray
128x128
Glyph
Wireframe mono icons
Black
48x48
3D
Real Vista 2
400x400
Shopping & e-commerce
Sophistique
UI
Pixel
Fugue Icons
inbox, exclamation
BurlyWood
16x16
inbox, Arrow
inbox, pencil
SaddleBrown
playlist, document, music
24x24
music, inbox, document
plus, inbox
Minus, inbox
document, Text, inbox
film, inbox
document, inbox
Slide, inbox
image, inbox
inbox, table
Computer & hardware
Human o2
mail, inbox
WhiteSmoke
inbox, read, mail
envelope, inbox, Import
Gnome icons
Mixed
Led Icons
Peru
Crystal Project
inbox, Folder
256x256