Which of the following practices helps an incident responder in securing email communication across an organizational network?

Hovering over links to identify whether they point to the correct location is a crucial practice for incident responders working to secure email communication. This technique allows the responder to verify the legitimacy of the links before clicking on them, helping to prevent phishing attacks or malicious redirects. By inspecting the URL that a link points to, responders can confirm if it leads to a trusted source or an unexpected, potentially harmful destination. This proactive measure is essential in identifying and mitigating risks associated with email-based threats, thereby enhancing overall security within the organization.

In contrast, other practices such as clicking links in unknown emails can expose the organization to significant security risks, and reducing the number of emails sent might not directly enhance security; it may hinder communication. Using generic greetings in emails fails to enhance security as it does not relate to verifying the authenticity of email communications. Thus, hovering over links stands out as an effective means of securing email interactions.