"antispam" meaning in English

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          "ref": "2005, Alex Martelli, Anna Ravenscroft, David Ascher, Python Cookbook:",
          "text": "[…] at times I get huge amounts of duplicate messages that can overload my mail-reception pipeline, particularly antispam filters.",
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        "Countering spam (unwanted electronic mail)."
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          "spam"
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        "(Internet) Countering spam (unwanted electronic mail)."
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          "code": "fa",
          "lang": "Persian",
          "roman": "pâd-harz",
          "sense": "countering spam (unwanted electronic mail)",
          "word": "پادهرز"
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          "sense": "countering spam (unwanted electronic mail)",
          "word": "antyspamowy"
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          "sense": "countering spam (unwanted electronic mail)",
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          "text": "This is why antispam advocates are so vigilant.",
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      "glosses": [
        "Opposed to spam."
      ],
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  "word": "antispam"
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  "translations": [
    {
      "code": "fa",
      "lang": "Persian",
      "roman": "pâd-harz",
      "sense": "countering spam (unwanted electronic mail)",
      "word": "پادهرز"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "countering spam (unwanted electronic mail)",
      "word": "antyspamowy"
    },
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "countering spam (unwanted electronic mail)",
      "word": "antispam"
    }
  ],
  "word": "antispam"
}