You need to write professional emails quickly but struggle with finding the right words. Microsoft Copilot in Outlook is an AI assistant integrated into the email composition window. This article provides the exact steps to activate and use Copilot for drafting, replying to, and improving your email messages.
Key Takeaways: Using Copilot for Outlook Email Drafts
- Draft with Copilot button: Generates a complete email body based on a brief prompt you type into the compose pane.
- Ctrl+Shift+A keyboard shortcut: Opens the Copilot pane directly from a new message or a selected email you are replying to.
- Rewrite with Copilot feature: Refines your existing draft text to change its tone, length, or clarity with a single command.
What Outlook Copilot Does and What You Need
Copilot in Outlook is an AI-powered writing assistant. It helps you create new emails, craft replies, and edit existing text. You describe what you want to say in plain language, and Copilot generates a formatted draft. You can then insert, edit, or regenerate that text.
You need a specific Microsoft 365 subscription to use this feature. It requires a Microsoft 365 E3, E5, Business Standard, Business Premium, or a Copilot for Microsoft 365 add-on license. The feature appears in the Outlook for Windows app and Outlook on the web for work or school accounts. It is not available for personal Outlook.com accounts in the consumer version.
How Copilot Understands Your Request
Copilot uses the context of the email you are writing. If you are replying to a message, it reads the original email’s content. It also considers the subject line you have entered. Your prompt can be a simple instruction like “draft a polite follow-up on the Q3 report” or “say I accept the meeting and will prepare slides.” The AI then creates a complete paragraph.
Steps to Draft a New Email with Copilot
Follow these steps to create an email from scratch using the AI assistant.
- Start a new email
Open Outlook and select New Email. Enter the recipient’s address and a subject line in the appropriate fields. - Open the Copilot pane
Look for the Copilot icon on the right side of the toolbar in the message window. It looks like a blue circle with a white sparkle. Click it, or press Ctrl+Shift+A on your keyboard. The Copilot pane will open on the right side of your screen. - Enter your drafting prompt
In the Copilot pane, you will see a text box. Type a clear instruction for the email you need. For example, write “a formal invitation to the project kickoff meeting next Monday at 10 AM.” Be as specific as possible about the tone and key points. - Generate and insert the draft
Click the Generate button. Copilot will create a draft in the pane. Review the text. If you like it, click the Insert button at the bottom of the draft. The text will be placed into the body of your email. You can then make any manual edits before sending.
Steps to Reply to an Email with Copilot
Copilot can save time when crafting responses. It uses the original email for context.
- Select the email to reply to
In your inbox, click on the email you want to answer. Select Reply or Reply All from the ribbon. - Activate Copilot in the reply
In the new reply window that opens, click the Copilot icon on the toolbar or press Ctrl+Shift+A. The Copilot pane opens with the original message’s context already loaded. - Command Copilot to draft a reply
In the prompt box, you can type a simple command. For example, type “write a concise thank you” or “draft a reply asking for more details about the budget.” You can also choose from suggested prompts like “Summarize and respond” that appear in the pane. - Insert and customize the reply
Click Generate, review the proposed reply text, and click Insert. The drafted reply will appear in your message body. Always read it and add any personal touches or specific information the AI may not have included.
Common Mistakes and Things to Avoid
Copilot Icon Is Missing or Grayed Out
If you cannot see the Copilot button, your Microsoft 365 account likely does not have the required license. Check with your organization’s IT administrator. Also, ensure you are using the correct Outlook application. The feature is not in the older Microsoft Office 2019 or 2021 perpetual versions.
Generated Draft Is Too Vague or Incorrect
Copilot’s output depends heavily on your input prompt. A vague prompt like “write an email” will produce a generic result. Always include key details: the purpose, required action, tone, and any critical dates or numbers. If the first draft is not right, use the “Regenerate” button in the Copilot pane to try again with a more detailed prompt.
Forgetting to Review and Edit the AI Draft
Copilot is an assistant, not an autopilot. You must always review the generated text for accuracy, appropriateness, and tone before sending. Check for any factual errors, especially with dates, names, or project specifics that the AI might have misunderstood from the email thread.
Copilot Drafting Methods Comparison
| Item | Draft New Email | Draft Reply |
|---|---|---|
| Primary Use Case | Initiating a new conversation or sending an unprompted message | Responding to an existing email thread |
| Required Context | You must provide all details in your prompt | Copilot automatically reads the original received email |
| Starting Action | Click New Email, then the Copilot icon | Select an email, click Reply, then the Copilot icon |
| Prompt Example | “Draft a project update for the client highlighting completed milestones” | “Agree to the time and ask for the conference dial-in details” |
| Output Control | High control via detailed prompting | Faster but relies on accurate interpretation of the thread |
You can now use Copilot to generate first drafts for both new emails and replies. Try the Rewrite feature next to polish a draft you have already written. For advanced use, combine Copilot with Outlook Quick Steps to automate sending common AI-generated follow-ups.