01Summarising long email threads
The most immediately useful Copilot Outlook feature is thread summarisation. When you open an email thread with multiple messages, Copilot shows a summary at the top of the thread: who said what, what the current status is, and what action is required from you.
This is particularly valuable for threads you are coming back to after a period away, threads with many participants, or threads that have evolved significantly since your last engagement. Rather than reading 15 messages chronologically to understand where things stand, Copilot's summary gives you the current situation in 30 seconds.
Use the 'Catch Up' feature in Outlook to surface your most important unread emails and threads, prioritised by Copilot based on your interaction patterns, role relationships, and email content. This is most useful when returning from leave or after a period of meeting-heavy days when email has accumulated.
02Drafting and refining responses
Copilot can draft email responses based on your instruction. Open an email and click the Copilot 'Draft with Copilot' button to get a draft based on the thread context and your instruction.
Effective instructions for draft generation: 'Draft a brief reply thanking them and confirming I will review the proposal by [date].' 'Draft a polite decline explaining we are not in a position to take this forward at this time.' 'Draft a response agreeing in principle but flagging that the commercial terms need further discussion before we can commit.'
Copilot's drafts are a strong starting point but usually need editing, particularly for tone. External communications, sensitive situations, and messages where nuance matters should always be reviewed carefully before sending. The draft is a time-saving tool, not a final product.
For emails requiring your personal voice (direct reports, important clients, key relationships), use Copilot's draft as raw material that you substantially edit, rather than sending it lightly revised.
03Coaching and tone checking
Copilot in Outlook includes a coaching feature that reviews drafts you have written and suggests improvements for tone, clarity, and conciseness. It can flag language that is potentially too blunt, too passive, or unclear.
This is most useful for emails that you know are delicate: a difficult message to a direct report, a challenging communication to a board member, or a response to a complaint. The coaching feature catches tone issues that you might not notice in a draft written quickly under time pressure.
The feature is not infallible: it sometimes flags confident, direct language as 'potentially harsh' when directness is appropriate. Apply your judgement to the coaching suggestions rather than following them automatically.
04Maintaining the personal touch
The risk with Copilot email assistance is that communications start to feel templated and impersonal. For executive communications where relationships matter, the personal quality of the communication is part of its value.
Practical guidelines for maintaining personal quality: For close working relationships (direct reports, key clients, frequent collaborators), use Copilot for drafting but rewrite substantially in your own voice before sending. For routine transactional communications (acknowledgements, scheduling, straightforward information sharing), Copilot drafts with light editing are appropriate. For sensitive matters (performance issues, difficult decisions, significant news), write the email yourself and use Copilot only for tone checking.
The most effective executives use Copilot to eliminate the time spent on routine email administration, preserving their personal time and attention for the communications where quality matters most.
Key Takeaways
- 1.Thread summarisation is the highest-value Copilot Outlook feature for executives: understanding the current status of long threads in 30 seconds rather than reading all 15 messages.
- 2.Copilot drafts are strong starting points requiring editing; always review for tone and personal quality before sending, particularly for external communications.
- 3.Use the coaching feature for sensitive emails; it catches tone issues in drafts written under time pressure but apply your own judgement to its suggestions.
- 4.Maintain personal quality by using Copilot heavily for routine transactional email and lightly (or not at all) for communications where relationship quality matters.
- 5.The productivity gain from Copilot email assistance comes from eliminating time on routine administration, preserving attention for high-value communications.
References & Further Reading
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