Outlook AI Assistant: A Copilot Alternative That Also Works With Gmail
Updated October 2026 · 6 min read
The problem with Outlook in 2026
Outlook is still where a lot of work email lives. Microsoft offers Copilot as a paid Microsoft 365 add-on; check Microsoft's site for what it currently includes. Native Outlook rules match fixed text and need manual upkeep.
An Outlook AI assistant adds an AI layer on top of Outlook without a new email client.
What an Outlook AI assistant does
- Priority scoring on new messages (in MsgMaster: high, medium or low, with VIP and needs-reply markers).
- Daily briefing that shows urgent and needs-reply email first.
- AI drafts inline in the Outlook reading and compose panes.
- Follow-up queue that lists sent emails with no reply and drafts a nudge with AI.
- Auto-sort tags & folders that mirror to real Outlook folders via Graph.
- One-click unsubscribe from newsletters.
What MsgMaster adds in Outlook
| Capability | MsgMaster |
|---|---|
| Thread summary | Yes |
| AI reply drafting | Yes, with tone options (drafts match your writing style on the Business plan) |
| Inbox priority scoring | Yes (high, medium or low, with VIP and needs-reply markers) |
| Follow-up tracking | Yes |
| Auto-sort rules | Yes, mirrored to real Outlook folders |
| Gmail support | Yes, same account (more than one mailbox requires the Business plan) |
| Price | 7-day free trial (card required), then Pro from $14.99 USD/month, plus applicable taxes |
If you already pay for Microsoft 365 Copilot, try it first and compare. Microsoft Copilot is a trademark of its owner. MsgMaster is not affiliated with Microsoft. Comparison based on public information as of October 2026; check each vendor's site for current features and pricing.
How to install MsgMaster as an Outlook add-in
- Join the MsgMaster waitlist. We will email you when the add-in launches.
- Open Outlook on the web (outlook.office.com) or desktop.
- Click Get Add-ins and add MsgMaster.
- MsgMaster appears in your ribbon on open email and compose.
- Sign in once. The same account works in the Chrome extension for Gmail.
Common mistakes using an Outlook AI assistant
- Trying to update instead of reinstalling. If the GUID changes, remove the old add-in first.
- Not enabling auto-apply on tags, so you keep sorting manually.
- Leaving the Focus Mode off during deep work blocks.
- Not connecting Graph for folder mirroring, so tags stay inside the add-in only.
Get MsgMaster for Outlook
We are launching soon. Works on Outlook web, Windows, and Mac, and the same account works in Gmail. MsgMaster starts with a 7-day free trial (card required). Pro is $14.99 USD/month or $79.99 USD/year, plus applicable taxes, and waitlist members get 50% off their first 2 months.
Join the waitlist →Frequently asked questions
Is MsgMaster a Copilot alternative?
MsgMaster is one alternative to consider. It adds AI reply drafting, inbox priority scoring, follow-up tracking and auto-sort rules with Outlook folder mirroring, and it also works with Gmail. Check Microsoft's site for Copilot's current features and pricing.
Does it work on Outlook desktop?
Yes. Office.js add-ins run in Outlook on the web, Windows, and Mac.
Will it mirror my tags to Outlook folders?
Yes. When you connect Microsoft Graph, MsgMaster's smart folders mirror to real Outlook folders so the sort is visible even in native Outlook.
Can I use it with a personal Outlook.com account?
Yes, as long as the account allows add-ins. Some organisations restrict add-ins on work or school accounts; ask your IT admin if MsgMaster does not appear.
How do I uninstall?
My add-ins → find MsgMaster → click the ⋮ menu → Remove. Removing the add-in does not delete your MsgMaster account or the data stored with it. To delete them, use msgmaster.ca/data-deletion or email isaac@msgmaster.ca.