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  Policy Patrol Spam Filter for Exchange 64-bit 25 Jan 15

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  Agnitum Spam Terrier (64-bit) 21 Jan 15

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  SonicWALL Anti-Spam Desktop (64-bit version) 10 Jul 15

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  OkInbox 31 Dec 14

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  SpamAssassin for Windows 30 Dec 14

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  Caretaker Antispam for Exchange ServerTwo (64-bit) 26 Jan 15

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  Benign 23 Sep 15

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  Mail Bloc 24 Sep 15