black circle mail and envelope icon set

navigate by keyword : mail email message envelope contact inbox communication letter web app icon vector set black circle outline interface symbol notification send receive address corporate business modern simple minimal flat graphic element collection isolated sign chat service support digital internet

Four envelope icons in black and white. Two are within black circles, with a white envelope symbol, and two are within black outlines of circles, with black envelope symbols inside. Each envelope is represented as a simple trapezoid shape, commonly used to symbolize email or mail services. These graphic elements are minimalistic and used for digital communication interfaces.