Cargo And Logistics No Delivery, No Shipment, No Package, No Parcel

A bold vector icon depicting an envelope with a prohibition slash, representing blocked or spam email. The glyph uses thick rounded strokes in deep navy over a soft light blue gradient backdrop, with a subtle drop shadow adding depth. Its playful duotone style suits spam warnings, unsubscribe flows, notification states, and empty states in Figma, Framer, or Webflow interfaces.