PNG ICO ICNS MORE
Mixed
Flat
Flat Designed Circle icon
mail
DodgerBlue
1000x1000
Computer & hardware
Flat Green
Email, inbox, Message
MidnightBlue
512x512
Mobile apps
iOS 7 Style - Metro UI Icons
Live, Metroui, mail
Metroui, mail
DeepSkyBlue
Social media
Red website beauty
Email, Hotmail, modern
IndianRed
@, Contact, touch
PNG MORE
20 Flat Icons
envelope, Email, Letter
SandyBrown
128x128
Desktop apps
Appicns
mail, appicns
LightSteelBlue
512x513
Plex for Android
mail, ru
RoyalBlue
96x96
Circular icon set
Black
256x256
UI
Metro UI Icon Set
Crimson
Live, mail
Flat UI Free
open, Email, mail
WhiteSmoke
200x200
Metro UI Dock
mail, Live
mail, Mirror
640x640
mail, Live, Mirror
DarkTurquoise