Blue Mailbox Illustration - Free Clipart for Communication & Postal Themes #3866577 (License: Personal Use)

This stylized illustration features a classic American-style curbside mailbox in bright cyan blue, with a contrasting red signal flag raised to indicate outgoing mail. The front includes a blue rectangular mail slot and a small blue handle, all outlined in bold black lines for clarity. The mailbox sits atop a simple brown wooden post, rendered in a clean, vector-like cartoon aesthetic suitable for digital use.

Commonly used on educational sites, children’s content, email marketing pages, or postal service infographics to symbolize mail, communication, or notification. Matches user intent for free, simple, royalty-free illustrations of mailboxes.