E-mail, Envelope
This is an envelope with a capital letter E or @ symbol printed on the back, which means e-mail.
In the design of the emoji, the envelope depicted on the Google platform is yellow. In addition, some platforms depict the letter "E" on the envelope, while others depict the "@" symbol.
If the emoticon does not include the characters E or @, it can broadly refer to mails and letters, but after these two characters are added, it specifically refers to e-mails and electronic mailboxes.
