anti-spam

adjective
an·​ti-spam | \ ˌan-tē-ˈspam How to pronounce anti-spam (audio) , ˌan-tī-\
variants: or antispam

Definition of anti-spam

: serving or intended to eliminate or reduce spam anti-spam laws/legislation antispam filters … spammers keep coming up with new tricks to work their way around anti-spam technology …— Thomas Claburn

First Known Use of anti-spam

1995, in the meaning defined above

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The first known use of anti-spam was in 1995

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