To help users identify messages coming from outside the organization, which options can you modify?

Modifying the message subject, body, and header can all be effective ways to help users identify messages originating from outside the organization. Each of these components plays a significant role in how users recognize and assess the legitimacy of incoming emails.

By changing the message subject, you can include indicators such as “[External]” or other markers that explicitly inform the recipient that the email is from an outside entity. This approach helps create immediate awareness just from the subject line.

Adjusting the message body provides another opportunity to communicate the email's external origin. Including a warning or additional context about the sender's external status can reinforce the message that the user should be vigilant when handling such communications.

Lastly, alterations to the message header can relay important metadata about the sender. Modifying the headers to include tags or flags indicating that the message is coming from an external source can further assist users in identifying potentially phishing or unauthorized emails.

Because each of these methods serves to improve awareness of external communications, modifying any or all of them collectively strengthens the overall security posture and improves user vigilance regarding email threats.