Which feature would be specifically useful for creating personalized email responses for customer support?

The feature that would be specifically useful for creating personalized email responses for customer support is Einstein Service Replies for Email. This tool is designed to enhance customer interaction by automating the process of generating email responses based on incoming customer inquiries. It leverages machine learning to understand the context of the customer's message and formulates replies that are tailored to meet their specific needs.

By using this feature, customer support representatives can provide faster, more relevant responses, improving overall customer satisfaction. The personalized emails generated help in addressing customer queries accurately and promptly, which is critical in a support setting.

While Einstein Chat Summaries focuses on summarizing interactions in chat scenarios, Einstein Automated Messaging is more suited for proactive communications rather than individualized email responses. Einstein Customer Engagement takes a broader approach to customer relationships and interactions, rather than honing in specifically on email responses. Thus, Einstein Service Replies for Email is the most relevant and effective tool for this purpose.