Email security is crucial to protect vital information flow through email accounts, content, and communications from unauthorized access, loss, or compromise. Despite its business criticality, email was not designed with security in mind, making it a must to address common email security risks such as malware, spam, phishing, spear-phishing, and other malicious emails that can exploit vulnerabilities like URL links, attachments, or embedded messages. To secure email, organizations should consider shoring up their email defenses by configuring securely, using email authentication protocols like SPF, DKIM, and DMARC, encrypting email communications, and implementing threat protection, fraud protection, data protection, user identity protection, and threat intelligence. Additionally, educating users on common threats and consequences is essential to maintaining a secure email environment.