PNG ICO ICNS MORE
Mixed
Smooth
Addictive Flavour
Add, mail
WhiteSmoke
48x48
mail, Alert
Check, mail
delete, mail
mail, download
mail, Forward
plain, mail
reply, mail
Tumblr, flickr, Rss
DarkSlateGray
UI
Snowish
mail, Email, envelope
128x128
Blue Coral
mail
Black
32x32
Business & finance
Primo
mail, newsletter, Compose
Gainsboro
unread, Email, mail
Email, newsletter, envelope
Email, send, mail
DarkGray
Desktop apps
Once
OrangeRed
Matte set: Basic
envelope, Message, mail
Lavender
Photography & graphic design
Lumina
Trash, mail
400x400
PNG MORE
Mobile apps
Dusk
CornflowerBlue
59x60
Ciceronian
mail, Email, newsletter
Fax, mail, Call
DarkSeaGreen
Austerity
mail, Stamp
LightSteelBlue
Developer Kit
envelope, mail, Letter
RoyalBlue