Final answer:
Sender Policy Framework (SPF), DomainKeys Identified Mail (DKIM), Domain-based Message Authentication, Reporting, and Conformance (DMARC)
Step-by-step explanation:
One method to detect e-mail spoofing is through the use of Sender Policy Framework (SPF). SPF allows the domain owner to specify which mail servers are authorized to send emails on behalf of their domain. The receiving mail server can then check the SPF record to verify the authenticity of the sender.
Another method is DomainKeys Identified Mail (DKIM). DKIM adds a digital signature to outgoing emails, which can be verified by the receiving server. This helps to ensure that the email has not been tampered with and originated from the claimed domain.
Lastly, Domain-based Message Authentication, Reporting, and Conformance (DMARC) is a method that combines SPF and DKIM. It provides an extra layer of protection by specifying how the receiving mail server should handle emails that fail the SPF or DKIM checks.