icon, vector, symbol, icon set, clip art, line icon, accuracy, alertness, application form, cloud computing, correspondence, e-mail, e-mail inbox, e-mail spam, envelope, exchanging, expressionism, global communications, information equipment, information medium, letter - document, letterbox format, mail, mailbox, message, note - message, note pad, online messaging, paper, paperwork, portability, report - document, send, sending, text messaging, garbage, junk mail, garbage bin, garbage can, business finance and industry, cleaner, cleaning, garbage dump, industrial garbage bin, junk ship, pollution, recycling bin, refusing, social issues, notification icon,