PNG ICO ICNS SVG MORE
UI
Outline
Interface
interface, Letter, Message
Black
512x512
Linecon
send, Email, Letter
mail, Email, Letter
Freeline
envelope, Letter, mail
Valenticons
valenticons, Letter, valentines
ikooni outline: Free Basic
envelope, Spam, Message
Round Black Icons
Letter, Communication, Email
Office icon set
envelope, Communication, mail
PNG ICO ICNS MORE
Glyph
Token
telephone, envelope, mail
128x128
Pixel
Fugue Icons
spacing, Letter, Edit
16x16
Gnome icons
Form, Dialog, Letter
24x24
3D
Nuvola
Font, Letter
Letter
Crystal Clear
F, Font, Letter