PNG ICO ICNS MORE
Snowish
Folder, important
WhiteSmoke
128x128
Ultimate Gnome
Email, mail, Message
Nuvola
important, document, paper
Human-O2
Email, Message, Letter
32x32
UI
3D
Gnome Web Icons
mail, important, mark
mark, important, 48
48x48
Smooth
important, File
Crystal Clear
File, important