Email Icon Or Letter Envelope

Envelope

An envelope opening to show a piece of paper.

A single opened envelope with nothing inside it. 

An icon indicating 100 unread messages or emails.

Three envelopes one on top of the other. 

Envelope attached to the string of a floating balloon.

An opened envelope with a letter coming from it.  

A closed large manila envelope with a flap. 

A curved outdoor mailbox with an envelope half sticking out of the mail slot. 

An open envelope with a pointing cursor and a letter with a notification icon on its top corner.

A busy and overworked manager or employee surrounded by charts, graphs, and notifications.