ChatGPT for Outlook is a plugin that allows you to run ChatGPT within Outlook to process emails. It enables you to install custom prompts to generate summaries or key points tailored to your needs. You can choose to process the entire email or specific sections like the body, subject, or attachments, focusing on the most relevant information. You can view the output in a separate window or replace the original email content. ChatGPT for Outlook enhances Outlook's functionality, helping you manage and process emails more efficiently.