SSL is a legacy technology, and it's mostly TLS used by most organizations. However, it's just a naming convention that SSL certificate providers and businesses use. If you compare how SSL and TLS work, both need to establish a handshake mechanism for a secure connection. TLS is an improved SSL version where the handshake mechanism works only if the email's sender and receiver follow specific guidelines. Most importantly, it's the SSL certificate provider that matters as they can provide enhanced TLS security with the naming convention. Now that you know all about SSL/TLS, security protocols, and vulnerabilities, it boils down to one crucial factor-your email certificate. It is the key to securing your emails.