What is an email signature in the context of an SEG?

An email signature in the context of a Secure Email Gateway (SEG) serves as a verification of the sender's identity included in emails. This is fundamental because it establishes trust and authenticity when an email is received by the recipient. The signature helps to confirm that the email has come from a legitimate source and has not been tampered with during transit.

This verification process plays a crucial role in protecting against phishing attempts and email spoofing, as it allows recipients to more easily ascertain the legitimacy of the sender. By implementing such verification methods, organizations can enhance their security posture and reduce the risk of falling victim to malicious email schemes.

In addition to its identity verification function, an email signature may incorporate related elements, such as information about the sender’s organization or policy disclaimers, thus reinforcing both security and professionalism in communication.