The short answer
Want AI inside Outlook itself? Copilot. Want your inbox sorted and replies drafted? Fyxer. Want a faster email app? Superhuman Mail. Want meetings booked and people chased for you? Emily.
At a glance
| Copilot in Outlook | Fyxer AI | Superhuman Mail | Emily | |
|---|---|---|---|---|
| Kind | Built into Outlook | Inbox add-on | Separate email app | Assistant you email |
| Reads your inbox | Yes | Yes | Yes | No - calendar only |
| Sends for you | No - you send | No - drafts only | Drafts; you send | Yes, as your assistant |
| Books meetings end to end | No - you send the invite | No - drafts times or a link | Not confirmed | Yes |
| List price | £16.10 per user a month paid yearly, ex VAT, add-on to Microsoft 365 Business | From $22.50 per user a month billed annually | From $30 a month | £5 a month including 50 actions |
Prices are list prices as published on 21 September 2026, in the currency and billing basis shown. They change, so check the provider's own page before you buy.
What makes Emily different
Whichever tool you compare her with, these are the things Emily is built around.
Talk to her like a real assistant
Write the way you would to a PA: "Find an hour with Sam next week and chase the contract if he goes quiet." She asks when something isn't clear and will think a problem through with you, so she's a sounding board as well as a doer.
Arranges things without you
She does the back-and-forth with the other people, checks your calendars and just asks you to pick a time. Then she sends the invite and chases anyone who goes quiet.
Every calendar you use
Connect Google, Microsoft and Apple calendars, including more than one account of each. She checks them all before she offers a time and can keep one in sync with another.
Your emails and other people's
Forward or CC her your own mail, or give your Emily address to clients, candidates and suppliers. She deals with what they send and can pass each kind of email to the right person on your team.
Yours to shape
Rules for how she handles certain emails, notes she remembers about you and your contacts, and automations such as weekly updates, reminders and follow-ups.
Your information and the web's
She works from your files, notes and contacts, and uses live web search for anything beyond them, such as finding a local tradesperson or checking a fact.
Acts only with your say-so
She acts on what you ask and the rules you've set, can send you a draft first, and checks with you when she isn't sure. A message that fails sender checks is held, never acted on.
Private by design
She never reads your mailbox. She sees only the emails that reach her and the calendars you connect, and your data is stored in the UK.
Email, text, Claude or ChatGPT
Email her from any provider, text her from a UK mobile, or connect her to Claude or ChatGPT and delegate from there.
Copilot: the built-in option
Microsoft 365 Copilot summarises threads, drafts from a prompt and helps fill in meeting invites, all inside Outlook. It's the natural choice if your organisation already runs on Microsoft 365, because it can also draw on your files and Teams. It drafts rather than acts: you review and send. For businesses it's a paid add-on to an eligible Microsoft 365 Business plan.
Fyxer and Superhuman Mail: inside your inbox
Fyxer connects to your Outlook inbox, labels your email and drafts replies in your tone; its FAQ is clear that it never sends. Superhuman Mail replaces the Outlook interface with a faster email app with AI built in. Both need access to your whole mailbox, and both leave the sending to you.
Emily: an assistant you delegate to
Emily works differently. She has her own address; you email her from Outlook with an instruction, and she does it - emails the other person, agrees a meeting time and sends the invite, or chases until someone replies. She connects to your Microsoft 365 or Outlook.com calendar, not your mailbox, and can add Teams links on work and school accounts.
What she doesn't do: sort your inbox or draft replies to everything that arrives. If that's what you need, one of the options above is a better fit.
One that doesn't work with Outlook
Shortwave, a popular AI email app, supports Gmail and Google Workspace only. Its documentation says Microsoft 365 and Exchange accounts aren't supported.
Questions
What is the best AI email assistant for Outlook?
It depends on the job. Copilot is best for AI inside Outlook and Microsoft 365. Fyxer is built for inbox triage and drafts. Superhuman Mail is a faster email app. Emily is best if you want an assistant to book meetings and chase people for you.
Do any Outlook AI assistants send emails for you?
Of the ones on this page, only Emily sends on your behalf, as your assistant. Copilot and Fyxer draft for you to send, and we couldn't confirm that Superhuman Mail sends on its own.
Is there an AI assistant for Outlook that doesn't read my inbox?
Emily. You email her the tasks you want done, and she connects to your calendar only.
Sources
- Microsoft support - Copilot in Outlook
- Microsoft UK - Copilot Business pricing
- Fyxer - pricing and FAQ
- Superhuman - Outlook page
- Superhuman Mail - plans
- Shortwave - Microsoft and Exchange support
- Emily pricing (landing page)
- Emily privacy policy - where data is stored and processed
We wrote this page, and Emily is our product, so read it with that in mind. Every fact about another product comes from its own public pages, checked on 21 September 2026. Where we couldn't confirm something, we say so. Product names belong to their owners, and we're not affiliated with them. Spotted something out of date? Email help@emily-wrf.com and we'll fix it.
Try Emily for yourself
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