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Firewall
A programme or set of programmes designed to keep unauthorised users or messages from accessing a private network. The firewall usually has rules or protocols that authorise or prohibit outside users or messages. In email, a firewall can be designed so that messages from domains or users listed as suspect because of spamming, hacking or forging will not be delivered.
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- Part of Speech: noun
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- Blossary:
- Industry/Domain: Software; Online services
- Category: Email; Internet
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