mail cover

noun

An investigative technique in which the United States Postal Service, acting at the request of a law enforcement agency, records information from the outside of letters and parcels before they are delivered and sends that information to the requesting agency.

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Meanings

noun
  1. USAn investigative technique in which the United States Postal Service, acting at the request of a law enforcement agency, records information from the outside of letters and parcels before they are delivered and sends that information to the requesting agency.
Cite this entry
APA

mail cover. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/mail%20cover

MLA

“mail cover.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/mail%20cover. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “mail cover,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/mail%20cover.

Source: mail cover on Wiktionary, CC BY-SA 4.0.