dead mail

noun

Definition of dead mail

: mail that is undeliverable because of faulty or illegible address and is unreturnable to the sender or that is unclaimed after a certain period of time and that must be sent to the dead-letter branch in the case of first-class mail or to the dead parcel-post branch for disposal

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Learn More About dead mail

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Cite this Entry

“Dead mail.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dead%20mail. Accessed 4 Dec. 2021.

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