PNG ICO ICNS MORE
Mixed
Smooth
Bunch of Bluish Icons
mail, Recieve
Black
512x512
Simplicio
envelope, mail, Email
Goldenrod
128x128
receive, mail
mail, delete
send, mail
search, mail
write, mail
mail, warning
Copenhagen
mail, no attribution, Email
WhiteSmoke
64x64
Addictive Flavour
Add, mail
48x48
mail, Alert
Check, mail
delete, mail
mail, download
mail, Forward
plain, mail
reply, mail
Tumblr, flickr, Rss
DarkSlateGray
PNG MORE
Austerity
mail, Stamp
LightSteelBlue
59x60
Scrap
Orange, mail
Gold
Carpelinx
mail, Find
DarkGray
mail, envelope
mail, send, Forward