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
Glyph
Free basic
envelope, Message, Rss
CadetBlue
Office icon set
envelope, Communication, mail
Integral
Letter, mail, Message
DarkSlateGray
PNG ICO ICNS MORE
Token
telephone, envelope, mail
128x128
Smooth
Developer Kit
envelope, mail, Letter
RoyalBlue
Pixel
Fugue Icons
spacing, Letter, Edit
16x16
Sweetie Web Communication
Email, Letter
WhiteSmoke
PNG MORE
Silver
24x24
Gnome icons
subject, Fields, Letter
Gainsboro
Form, Dialog, Letter
Function icons
mail, Letter, receive
DarkGray
48x48
envelope, Message, Letter
Lavender
32x32
3D
Nuvola
Font, Letter
Letter
word, File, Letter
Crystal Clear
F, Font, Letter
First, upper, Letter