Join me exploring Microsoft Copilot through each letter of the alphabet. This week, O is for Outlook.

Specifically: Copilot in Outlook. Your inbox. Your calendar. Frustrating and necessary in equal measure. With an inbox bursting at the seams and a calendar that looked like tetris gone mad, I played around with prompting experiments to see if Copilot in Outlook could help with the overwhelm. 

I kept notes as I went, and what I found were a few wins, what I’m calling some ‘gaps’, and the occasional fail.  So that’s exactly how I’m going to share it.

I nearly fell at the first hurdle, which is a bit embarrassing. It took me a while to realise that I’ve been managing my email and calendar on autopilot for so long that when I sat down to think about what I actually wanted Copilot to do, I found it really hard to come up with ideas. The mental steps I take daily to triage what’s important in my inbox vs what’s noise, where calendar appointments work for me and where they don’t, those are so ingrained that I don’t consciously think about them anymore. That makes finding the words to describe them to an AI really hard! 

If some of my early prompts came out vague, that’s probably why. You can’t prompt your way to a clear outcome if you haven’t figured out what the outcome is yet.

So before you open Copilot in Outlook: spend at least a bit of time thinking about the specific thing that’s causing you friction. Not “help me with my overflowing inbox” (yes that was an actual prompt I tried) But “Have I responded to all my boss’ emails?” or whatever it is. 

As with all AI, the specifics make everything that follows much more useful, as I eventually learned (or re-learned!) the hard way.

Copilot for email

✅ Win: flagging what needs a response

The most immediately useful thing Copilot does in Outlook is triage. I asked it: “Which emails in my inbox need my reply?” I checked the answer against my actual emails and found it had given me a solid, sensible list. It even offered to help draft the replies. 

Something I’d do differently next time is tweak the prompt to ask it to batch similar types of replies. The list it gave had my brain context-switching all over the show, and some of the items on the list were similar in nature enough that I could have had an easier mental time batch responding to.

✅ Win: drafted a polite “no thanks” 

I’ve often poo-poohed the idea of Copilot drafting emails for me. Copilot doesn’t always have enough context about my relationship with someone or the history of a situation to get the tone or content right. (See B is for Be Careful on this.) 

Then I found the use case that changed my mind: the polite decline. “Please draft a polite decline to this offer.” 

I am terrible at saying no. I agonise over the wording, I over-explain, I apologise too much, and I usually end up sending something that is so wishy-washy it looks like I haven’t actually said no at all.

Copilot did a great job for me. A polite decline doesn’t actually require much context really. It doesn’t need to know my history with the person or the nuances of the project. It just needs to be warm, clear, and firm. That’s basically a template with your name on it, and templates are what Copilot is good at.

If you’re a chronic people-pleaser with a backlog of emails you’ve been avoiding: this helps so much. 

✅ Win: out of office sorted in thirty seconds

Setting up your out of office. It’s annoyingly hidden and I can never ruddy-well remember which things to click to get to the place to turn it on. 

I asked Copilot to set up my out of office for me. Literally “Set up my out of office, I’m back on xxx date.” It asked me a few questions (like whether I should include a ‘please email [someone] in my absence’), then drafted it, and turned it on as soon as I gave it the ok. 

Love this. 

(Also I tested it by emailing myself and yes it did actually work.) 

🔍 Gap: the suggested prompts are all reactive

Here’s something I noticed.. The prompts Microsoft surfaces in Copilot for email all default to the same direction: what do I need to respond to? What needs my attention? What’s in my inbox?

All useful. But all reactive.

It took my own lightbulb moment to flip it around and ask: what have I asked other people for that I haven’t had a response to yet?

Copilot can absolutely answer this and turns out it’s a pretty good prompt if I say so myself. But Microsoft isn’t nudging you to ask it. I guess this is a reminder to see the suggested prompts as training wheels. At some point it’s worth taking them off and asking the questions that are actually useful to you, not just the ones that appear on the screen.

🔍 Gap: emails → actions needs Power Automate

Often my emails need a few different actions from me and/or others. Putting those actions somewhere useful to keep on track is still pretty manual right now.

Ideally I’d want Copilot to take any actions that are sitting in my inbox and pump them into a proper task tracking tool like Planner. Copilot told me it could definitely do this, but I’d need to set up a Power Automate flow if I want to take the manual aspect away.

The possibility is brilliant, but I think using Power Automate is probably a step too far for people who just want to dabble in increasing their productivity. 

It’s interesting to see the point at which you reach the edge of what Copilot can do on its own, and it’s worth knowing that the next level involves different tools. 

❌ Fail: couldn’t bulk move emails into my folder

After working through a batch of emails I wanted to file them. 

Confession time: I have one folder in Outlook called “Resource,” I file everything into it, and I use search to find things later. My boss thinks this is unhinged. I think it’s efficient. We agree to disagree.

Copilot couldn’t file things for me. Into the one folder. (One folder people…) It also couldn’t delete emails for me. Good at identifying what could go. Couldn’t action it. 

In both cases Copilot actually told me I would be better at this than it. Facepalm. 

Isn’t AI supposed to do the repetitive stuff we don’t want to do??? 

I do expect that this will get better over time. 

Copilot for calendar

✅ Win: finding time for a meeting

I needed to set up a meeting with Kevin. I told Copilot who he was, what the meeting was for, and roughly when I needed it to happen. IE “Find me 30 minutes to meet with Kevin next week.” It came back with three available slot options and was ready to send the invite.

Done. No back-and-forth, no “when works for you?” email chain. Just: here are your options, shall I book it?

(To be transparent – I did use a similar prompt the day before, and Copilot had suggested a time for the meeting that I wasn’t actually available for. D’oh. Possibly not as robust as it could be yet.)

✅ Win: brutally honest about my week

I asked Copilot to analyse my calendar and tell me how my week was looking. What came back was no-holds-barred honest:

“Your week isn’t just busy. It’s mathematically impossible as scheduled.”

I mean; yes. Correct. Appreciated.

To have a tool tell you how nuts your aspirations for the week are in black and white does have the ‘stop and think’ effect. I think I already knew the answer myself but looking at it spelled out made me actually try and do something about it. 

🔍 Gap: vague in, vague out

This one is my own fault but I suspect I’m not the only one who fell into this trap.

I asked Copilot to help me with my “calendar madness” and sort out my car crash of a week.

It entered coaching mode. Down that rabbit hole I dived… 

What I got back was a thorough, earnest attempt to redesign my ideal working day;  energy management frameworks, suggestions for protecting focus time, thoughts on better aligning my blocks to my priorities. All lovely in theory. Not what I needed in the moment.

The problem wasn’t Copilot. The problem was me handing it a fuzzy, undefined problem and expecting a specific answer. This connects directly back to one of my other posts, G is for Grounding. The more context and precision you give Copilot, the better it performs. “Help me with my calendar” is not a prompt. “Find a 45-minute slot with Kevin next week and send the invite” is a prompt.

Vague in, vague out. File that one away.

🔍 Gap: it can analyse but it can’t shuffle

Copilot is honest about what it can and can’t do with your calendar. To summarise what it told me directly:

It can: analyse your calendar, spot clashes, identify gaps and priorities, tell you exactly what to move where, and help draft messages if you need to reschedule.

It can’t: directly drag, drop, or edit your calendar events, unless you ask it to take a specific action on a specific meeting, step by step.

Some other calendar tools will do the shuffling for you. Copilot won’t (yet). But the workaround it suggested is not unreasonable: use it as your scheduler brain, then spend five minutes implementing the changes yourself. The thinking is the hard bit.

Worth noting: as I was writing this post, Microsoft announced that agentic calendar management is starting to roll out; automatically resolving conflicts, rescheduling meetings, blocking focus time, the works. It’s coming via the Frontier programme first, so not everyone will have it immediately. But this particular gap may already be closing. Watch this space. Copilot in Outlook: New agentic experiences for email and calendar | Microsoft Community Hub

One thing worth knowing if you’re a time-blocker like me: Copilot reads your calendar literally. It doesn’t know that a block called “strategic thinking” is flexible, or that a meeting you’ve half-decided will probably be rescheduled is negotiable. It just sees a commitment.

If your calendar hygiene doesn’t reflect your actual intent (mine definitely doesn’t!) Copilot will flag clashes that aren’t really clashes, and miss context that only exists in your head. The more your calendar reflects reality, the more useful Copilot’s analysis will be. (I’m saying this to you and also very much to myself.)

The same logic applies to asking Copilot to fix everything at once; it gets messy. Ask it to do one thing at a time and it’s much more useful.

The verdict for now

Truthfully I was a bit disappointed that the results of my dabbling for this blog post didn’t have me discovering some groundbreaking new way to use Copilot in your Inbox and Calendar to completely revolutionise how you work. That’s kind of what I was hoping for, realistic or not. 

I know it can do more, cleverer stuff, like encouraging you to keep good calendar hygiene by helping you set up rules to include buffers after every meeting. (I also know I’d likely ignore those…) I know that if I spent some time building an agent I’d probably see better results with my email handling. 

But maybe ‘start small’ is the point here. Take the quick wins first. Instead of scrolling through the 45 emails you got overnight (true story) – ask Copilot “what actually needs my reply?”. 

Get it to switch on your out of office in 30 seconds instead of hunting around for the right buttons again. 

Some revolutions start small. I suspect this is one. 

Prompts to try:

• “Which emails in my inbox need a response from me?”
• “What have I asked others for that I haven’t received a response to yet?”
• “Summarise this thread and list the key decisions, open questions, and action owners.”
• “Summarise the attached document and highlight the key points.”
• “Help me write a polite decline to [this email].”
• “Help me set up my out of office — I’m away [dates], covering contact is [name].”
• “Find a free slot for a 30-minute meeting with [person] this week.”
• “Analyse my calendar this week — what clashes do I have and what do you suggest I do about them?”

TLDR: 

Wins: flagging emails to respond to, drafting a polite no, out of office in thirty seconds, finding meeting slots, and being brutally honest about an impossible week. 

Gaps: suggested prompts are reactive by default (flip them yourself), bulk actions still need you to do the clicking, and automating meeting actions into a task tool means getting Power Automate involved. 

The big lesson: specific prompt = great result. Vague prompt = productivity podcast. You’ve been warned.

Have you found a Copilot in Outlook prompt that actually changed how you work –  especially one Microsoft didn’t suggest? Drop it in the comments. I’m building my list.