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UI
Smooth
Ultimate Gnome
mail
WhiteSmoke
256x256
mark, mail, Check
junk, mark, mail
mark, read, mail
Gainsboro
mark, unread, mail
All, mail, reply
Linen
receive, send, mail
generic, mail
Accounts, preferences, mail
Black
mail, preferences
Copy, mail
Photography & graphic design
Transformers
mail, E
128x128
PNG ICO MORE
Desktop apps
Ginux
64x64
Business & finance
Pretty Office
Addressbook, contacts, mail
DarkKhaki
Music & multimedia
Soft Icons
AliceBlue
Quartz
newsletter, envelope, Email
Mixed
Scrap
Orange, mail
Gold
iSuite Revoked
CornflowerBlue
512x512
User Interface Icons
mail, Message, newsletter
80x80
Computer & hardware
Crystal Project
mail, sent, Folder
mail, delete
Maroon
mail, magnifying glass, Find
mail, Forward