How to Master Email With Microsoft 365 Copilot in Outlook

Power Play 1 of 5: turn long, noisy email threads into clear summaries and polished replies, in minutes.

Most people’s inboxes aren’t a productivity tool. They’re a backlog. In a 2026 survey of 3,000 American office workers, routine admin tasks that could be automated by AI were estimated to waste more than five and a half hours per week per employee. Drafting emails was cited as the single biggest drain on time by 34% of workers, followed by reading emails at 31%. ^[1] That’s not strategic communication. That’s inbox triage. And the long, complex threads that actually require thought are exactly where employees lose time.

Microsoft 365 Copilot in Outlook is the lowest-friction way to start getting value out of AI at work. Every employee has email. The time savings show up the first time you use it. And the workflow is simple: summarize, draft, refine, send.

How it works

Five steps, the same every time:

1. Open a long thread and click Summary by Copilot.
2. Review the summary for decisions, action items, owners, and open questions.
3. Ask Copilot to draft a reply based on the thread.
4. Refine the draft: shorter, more formal, executive-ready, whatever the moment calls for.
5. Review for accuracy and send.

Key message: Spend less time catching up. Spend more time moving work forward.

What the data says about real-world time savings

The U.S.-specific data makes the Outlook use case practical, not theoretical. The same 3,000-person American office worker survey estimated that automatable admin tasks cost U.S. businesses more than $818 billion annually in lost staff time. Email was the biggest part of that burden, with 34% of workers naming drafting emails as their top time drain and 31% naming reading emails. ^[1] A separate 2026 survey of 2,000 U.S. office workers found that nearly nine in ten use AI at work, but only one in four have fundamentally changed the way they work because of it. The strongest gains came from workers using AI directly inside their daily workflow, which is exactly why Outlook is such a practical starting point for Copilot adoption. ^[2]

Those numbers are modest per individual. They are not modest at organizational scale. A team of 50 recovering even one hour per person per week gains roughly 2,600 hours of capacity per year, before counting any quality improvements in the communication itself.

Why this is the right place to start with Copilot

Email Mastery is the recommended first Copilot habit for three reasons. It applies to everyone (every employee has an inbox). The value is immediate (a single morning catch-up beats a single training session). And the risk is low (you’re summarizing email you already have access to, then reviewing every draft before sending). Build this habit in week one, then layer in the other power plays once it sticks.

The rest of the Power Plays series

This is one part of a five-blog series on getting real value from Microsoft 365 Copilot. The other plays in the series:

1. Power Play 2: Document Drafting in Word
2. Power Play 3: Data Insights in Excel
3. Power Play 4: Presentation Creation in PowerPoint
4. Power Play 5: Enterprise Knowledge in Copilot Chat

The bottom line

This is one of five power plays that consistently earn Microsoft 365 Copilot’s license cost. Pick one to start with, build the habit, then layer in the others as the team gets comfortable. Adoption is the work. The tool is just the lever.

If your team is rolling out Copilot, or planning to, and you want help building the adoption framework, training, and governance to do it well, Advanced Business Solutions can help.