email

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What Are Email Blacklists

A DNS-based Blackhole List (DNSBL) or Real-time Blackhole List (RBL) is an effort to stop email spamming. It is a “blacklist” of locations on the Internet reputed to send email spam.

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What Is Email Spoofing

Email spoofing is the creation of email messages with a forged sender address. It is easy to do because the core protocols do not have any mechanism for authentication. Spam and phishing emails typically use such spoofing to mislead the recipient about the origin of the message.

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Understanding DomainKeys Identified Mail (DKIM)

DomainKeys Identified Mail (DKIM) is an email authentication method designed to detect email spoofing by providing a mechanism to allow receiving mail exchangers to check that incoming mail from a domain is authorized by that domain’s administrators.

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Understanding Sender Policy Framework (SPF)

Sender Policy Framework (SPF) is a simple email-validation system designed to detect email spoofing by providing a mechanism to allow receiving mail exchangers to check that incoming mail from a domain comes from a host authorized by that domain’s administrators.

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Phishing

Phishing is a scam where Internet fraudsters send spam or pop-up messages to lure unsuspecting victims into providing passphrases, personal, and/or financial information.