PNG MORE
Mixed
Pixel
Koloria icons pack
mail, warning, base
AliceBlue
32x32
PNG ICO ICNS MORE
base, mail, open
WhiteSmoke
Random icons
mail, Email
DarkGray
IconSweets 2
house, mail, Home
Black
40x40
inbox, mail, outbox
UI
Fugue Icons
mail, Forward
SteelBlue
16x16
receive, mail
reply, mail
Indigo
mail, send
mail, Forward, All
DarkGoldenrod
medium, mail
Lavender
mail, All, reply
receive, send, mail
share, mail
Computer & hardware
WooCons #1
Add, mail
Forward, mail
mail, open
remove, mail
Edit, mail
envelope, open, Email
mail, reply
Email, mail, envelope