A cybersecurity analyst is recommending a solution to ensure emails that contain links or attachments are tested before they reach a mail server. Which of the following will the analyst most likely re

Sandboxing provides a secure, isolated environment where suspicious email attachments and embedded links can be executed or followed to observe their behavior without risking the integrity of the actual network or endpoints. This dynamic analysis identifies malicious payloads or redirects before they reach the user's inbox or mail server, effectively preventing many advanced threats.

MFA (Multi-Factor Authentication) enhances login security but does not test email content for malicious links or attachments.

DKIM (DomainKeys Identified Mail) is an email authentication method that verifies the sender's identity and message integrity, but it does not scan attachments or links for malware.

A vulnerability scan identifies weaknesses in systems or applications but does not actively test incoming email attachments or links for malicious behavior.