Refine One Paragraph of Your Email With Copilot Instead of Rewriting It

Copilot in Outlook can now edit just the part of an email you highlight — tone, length, or structure — without touching the rest. It's a small change that fixes a real annoyance.

The old problem with AI email help

Until now, asking Copilot to fix an email was all-or-nothing. You'd have a draft that was 90% right, ask it to adjust the tone, and it would rewrite the whole thing — including the parts you were happy with. You'd then spend time putting your good sentences back. For a quick edit, that's more hassle than just fixing it yourself.

What changed in July

From mid-July 2026, Copilot in Outlook lets you refine an email directly in the compose window by selecting only the section you want to change. Highlight a paragraph, ask Copilot to adjust its length, tone, or structure, and it changes just that part. The rest of your draft stays exactly as you wrote it. Microsoft turned this on by default for licensed users, so if you have Copilot in Outlook, it's already there.

How to use it

Write your email as normal. When you hit a paragraph that isn't landing, select it, open Copilot, and tell it what to change. Be specific about the direction: "make this warmer", "cut this in half", "make this a clear request, not a suggestion". Because it's only working on the highlighted text, the instruction can be precise and the result stays surgical.

[Select the paragraph, then ask Copilot one of these:] "Make this two sentences shorter without losing the ask." "Soften the tone — it reads as blunt and I don't want to offend them." "Turn this into a clear, direct request with a specific deadline." "Make this more formal; it's going to a client, not a colleague."

💡 Where it earns its keep

The best use is the one awkward paragraph, not the whole email. The sentence where you're chasing an overdue invoice and don't want to sound rude. The line delivering bad news. The request you've rewritten four times. Select it, give Copilot one clear instruction, and move on.

Still read it before you send

Copilot adjusts wording well, but it doesn't know the relationship or the history you have with the person. It can make a firm message too soft, or make a friendly note sound corporate. Read the edited paragraph in the context of the whole email before you send, and make sure it still sounds like you and still says what you meant.

Do this today

Next time you're stuck on one paragraph of an email, don't rewrite the whole message and don't labour over it. Select just that paragraph, tell Copilot exactly how it should change, and send. That's the entire workflow, and it turns a five-minute fiddle into a ten-second fix.