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  InBoxer for Outlook 21 Sep 15

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  Spam Assault Professional Edition 29 Oct 15

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  AntispamSniper for The Bat 4 May 20

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  WorkgroupMail (German) 29 Oct 15

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  K9 22 Sep 15

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  Caretaker Antispam for Exchange ServerOne (32-bit) 26 Jan 15

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

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  BullGuard Spamfilter 16 Apr 15