11 lines
576 B
Text
11 lines
576 B
Text
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Hashcash is a denial-of-service counter measure tool. It's main current
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use is to help hashcash users avoid losing email due to content based
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and blacklist based anti-spam systems.
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The hashcash tool allows you to create hashcash tokens to attach to
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emails you send, and to verify hashcash tokens attached to emails you
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receive. Email senders attach hashcash tokens with the X-Hashcash:
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header. Vendors and authors of anti-spam tools are encouraged to exempt
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mail sent with hashcash from their blacklists and content based
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filtering rules.
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