How does FortiMail secure email communications?

FortiMail secures email communications primarily by encrypting emails and filtering out spam. Encryption is crucial as it protects the confidentiality of email messages while they are in transit, ensuring that sensitive information cannot be intercepted or accessed by unauthorized parties. This capability is vital for maintaining the integrity and privacy of email communications.

Additionally, spam filtering plays a significant role in security by identifying and blocking unwanted emails, which often serve as vehicles for phishing attacks or malware distribution. By effectively managing and mitigating these threats, FortiMail enhances overall email security, thereby protecting both individuals and organizations from potential email-based cyber threats.

The combination of these two functionalities—encryption and spam filtering—works together to create a more secure email environment, which is why this option is the correct answer.