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  EM Filter 26 Oct 15

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  BullGuard Spamfilter 16 Apr 15

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  TZ Anti Spam Filter 28 Oct 15

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  Payya Tec Spam Killer 27 Oct 15

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  SpamBully 29 Dec 14

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  SpamAssassin in a Box 25 Feb 15

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  SonicWALL Anti-Spam Desktop (32-bit version) 10 Jul 15

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  Caretaker Antispam (64-bit) 5 May 15