nolisting

N1O1L1I1S1T1I1N1G2

noun

A technique for blocking spam (junk e-mail) by configuring a non-existent server as the primary MX record, so that initial contact always fails. A legitimate sender is likely to try the next server, which should succeed.

Scrabble 10
Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

nounnolisting (uncountable)
  1. InternetuncountableA technique for blocking spam (junk e-mail) by configuring a non-existent server as the primary MX record, so that initial contact always fails. A legitimate sender is likely to try the next server, which should succeed.

Origin

From no + list + -ing.

Full word history & related roots →

Rhymes & wordplay

Anagrams

IslingtonInglistonIlsington
Cite this entry
APA

nolisting. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/nolisting

MLA

“nolisting.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/nolisting. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “nolisting,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/nolisting.

Source: nolisting on Wiktionary, CC BY-SA 4.0.