anti-spam
adjective
an·ti-spam
ˌan-tē-ˈspam 
ˌan-tī-
ˌan-tī-
variants
or antispam
: 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
Thomas ClaburnExamples of anti-spam in a Sentence
Recent Examples on the Web
But spammers can use these domains to flood inboxes with emails, simply creating new domains whenever the old ones are flagged by Microsoft’s anti-spam defenses.
—PC Magazine, 24 Aug. 2025
Campaigns have broad exemptions from anti-spam laws.
—Kurt Knutsson, FOXNews.com, 27 July 2025
Not only does this mean that the attacker does not need to know the phone numbers of the devices being targeted, but the resulting malicious SMS messages can also evade phone networks' anti-spam and security measures.
—Davey Winder, Forbes.com, 26 June 2025
The anti-spam tech works by analyzing a conversation for red flags.
—Lisa Eadicicco, CNN Money, 13 May 2025
The anti-spam protections put in place for Gmail will always walk something of a tightrope between stopping enough spam, a leading distribution channel for malicious actors, and stopping too much genuine email.
—Davey Winder, Forbes, 31 Oct. 2024
For instance, some people have their email client configured to use anti-spam software and spam filters which scan emails for red flags and then re-route messages to the spam folder according to the set criteria.
—Tyler Shepherd, USA TODAY, 5 Apr. 2024
Something analogous was just narrowly avoided on the Internet, when anti-spam watchdog Spamhaus came under the largest denial-of-service attack ever recorded.
—IEEE Spectrum, 28 Mar. 2013
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PC Magazine, 24 Aug. 2025
Campaigns have broad exemptions from anti-spam laws.
—Kurt Knutsson, FOXNews.com, 27 July 2025
Not only does this mean that the attacker does not need to know the phone numbers of the devices being targeted, but the resulting malicious SMS messages can also evade phone networks' anti-spam and security measures.
—Davey Winder, Forbes.com, 26 June 2025
The anti-spam tech works by analyzing a conversation for red flags.
—Lisa Eadicicco, CNN Money, 13 May 2025
The anti-spam protections put in place for Gmail will always walk something of a tightrope between stopping enough spam, a leading distribution channel for malicious actors, and stopping too much genuine email.
—Davey Winder, Forbes, 31 Oct. 2024
For instance, some people have their email client configured to use anti-spam software and spam filters which scan emails for red flags and then re-route messages to the spam folder according to the set criteria.
—Tyler Shepherd, USA TODAY, 5 Apr. 2024
Something analogous was just narrowly avoided on the Internet, when anti-spam watchdog Spamhaus came under the largest denial-of-service attack ever recorded.
—IEEE Spectrum, 28 Mar. 2013
Cite this Entry
“Anti-spam.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/anti-spam. Accessed 5 Mar. 2026.
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