Mailbox Envelope Flag black outline icon
Outline mailbox on a post with an envelope-shaped flag raised on the side
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About the Mailbox Envelope Flag black outline icon
A curved-top letter box sits on a straight post, with a raised side flag shaped like a sealed envelope to show that mail is waiting. The pairing of container and envelope communicates incoming post, notifications and correspondence, which suits contact pages, newsletter signup blocks, delivery tracking screens, inbox empty states and postal service websites.
The box is a wide rounded rectangle in side profile, the post is a narrow vertical bar, and the envelope flag repeats the classic V fold so it stays legible on its own. It works alongside envelope, parcel and delivery truck icons. Keep it at 24px or larger so the fold lines do not merge.
This is the black outline version of the mailbox envelope flag icon: even, monoline strokes that stay crisp at small sizes and suit clean, minimal interfaces, wireframes and light backgrounds.
Download it free as a scalable SVG vector or transparent-background PNG in seven sizes (16 to 512px), copy the SVG code straight into your project, or open it in the free online editor to change colors, apply gold, silver, neon and gradient styles, animate it, or convert it to EPS, PDF and DXF.
Free for personal and commercial use with attribution.
