AI email replies for Outlook on the web
In Outlook.com and Outlook for Microsoft 365, the AI Reply button drafts a reply from the email thread in front of you. You edit it and send it.
Free every month · No card needed · You always send
Where it works on Outlook
Full reply and quick reply
The button appears in both Outlook compose views — the full reply window and the small reply box under a message.
Personal and work accounts
Works on outlook.live.com and on Outlook for Microsoft 365 (outlook.office.com), in any interface language.
Attachments
Photos and PDFs attached to the email are read, so a reply to a contract or a quote can refer to what is in it.
A real example
What the extension reads, and the draft it hands back for you to edit.
An internal email at work
Can you send me the Q3 numbers before Thursday's review? If anything's still missing, tell me what and when.
Hi Daniel, I'll send the Q3 numbers by Wednesday evening. Sales and marketing are ready now; the support figures are the one gap — the team closes the month on Wednesday morning, so I'll add them as soon as they land. Thanks, Priya
Drafts appear in an editable box. Nothing is sent until you send it.
How it works
Open the email in Outlook on the web and start a reply.
Press AI Reply next to the message body, then choose a tone or type an instruction.
Edit the draft and insert it. Outlook's Send button stays yours.
What people use it for
Work email at volume
Clear the inbox faster with drafts that already answer the point, in a professional tone.
Careful replies
Pick a formal tone for a message that matters, or ask it to decline politely.
Your own facts
Add your role, your company and your policies once, and replies use them instead of guessing.
Questions about Outlook
Does it work in the Outlook desktop app?
No. It is a Chrome extension, so it works in Outlook on the web — outlook.live.com and outlook.office.com — in Chrome.
Does it read my whole mailbox?
No. It reads only the email thread open on your screen, and only after you press the button.
Can my company use it?
Yes. Team plans let several people share one subscription. Nothing is ever sent without the person pressing Send.
Reply faster on Outlook
Install the extension, open a conversation, and press AI Reply. A free allowance every month, in 75 languages.
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Outlook is a trademark of Microsoft Corporation. AI Reply Writer is an independent product and is not affiliated with or endorsed by Microsoft Corporation.