PNG ICO ICNS MORE
Desktop apps
Cartoon
Seed
envelope, Email
DimGray
128x128
Handdrawn
Marker-Style Icons
Email, envelope
Black
64x64
3D
Flat for Linux
Email, mail, envelope
WhiteSmoke
256x256
Smooth
Mnml
Email
Silver
PNG MORE
Ciceronian
mail, Email, newsletter
Gainsboro
59x60
Farm-fresh
Email, Add
LightCyan
32x32
Attach, Email
Email, delete
Edit, Email
Error, Email
Go, Email
Link, Email
open, Email
image, open, Email
Pixel
Webset Icons
DarkGray
48x48
Flat
2experts free icons set
Email, envelope, mail
DarkSlateGray
Smashy The Alien Icon Set
Email, Contact
LightSeaGreen
22 e107-Bubbles
SaddleBrown
30x30
Free Applications Icons
Browser, Address, web
SteelBlue
24x24
postcard, envelope, Letter
DodgerBlue
Stamp, mail, post
Gold
One bit
Goldenrod