Cisco Cisco Email Security Appliance C170 Guia Do Utilizador
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Cisco AsyncOS 8.5 for Email User Guide
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Email Authentication
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Email Authentication Overview
AsyncOS for Email supports email verification and signing to prevent email forgery. To verify incoming
mail, AsyncOS supports Sender Policy Framework (SPF), Sender ID Framework (SIDF), DomainKeys
Identified Mail (DKIM), and Domain-based Message Authentication, Reporting and Conformance
(DMARC). To authenticate outbound mail, AsyncOS supports DomainKeys and DKIM signing.
mail, AsyncOS supports Sender Policy Framework (SPF), Sender ID Framework (SIDF), DomainKeys
Identified Mail (DKIM), and Domain-based Message Authentication, Reporting and Conformance
(DMARC). To authenticate outbound mail, AsyncOS supports DomainKeys and DKIM signing.
Related Topics
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DomainKeys and DKIM Authentication
With DomainKeys or DKIM email authentication, the sender signs the email using public key
cryptography. The verified domain can then be used to detect forgeries by comparing it with the domain
in the From: (or Sender:) header of the email.
cryptography. The verified domain can then be used to detect forgeries by comparing it with the domain
in the From: (or Sender:) header of the email.