PNG ICO ICNS MORE
Mixed
Smooth
iVista 2
Email
Gainsboro
256x256
Animals
Monster icons
Email, mail
48x48
Business & finance
Primo
Accept, Email
128x128
mail, newsletter, Compose
unread, Email, mail
Add, Email
Email, delete
Email, Forward
reply, Email
Email, newsletter, envelope
PNG MORE
Desktop apps
Ciceronian
mail, Email, newsletter
59x60
PNG ICO MORE
UI
Quartz
newsletter, envelope, Email
64x64
Email, warning
One bit
envelope, Email
Computer & hardware
Futurosoft
Email, envelope
KDE Crystal Diamond
Calendar, Email
Vista Inspirate