Email specialist vs Microsoft ecosystem — a detailed comparison.
Microsoft Copilot for Outlook is part of the broader M365 Copilot suite ($30/user/month) and brings AI to email, Word, Excel, Teams, and more. Messybox is laser-focused on email alone — and does it across both Gmail and Outlook. If you're already paying for M365 Copilot, the email features come bundled. If you want dedicated email AI without the full suite cost, Messybox is the specialized choice.
| Feature | Messybox | Outlook Copilot |
|---|---|---|
| Email AI | ||
| AI Email Drafting | ✓ | ✓ |
| Smart Inbox Sorting | ✓ | ✓ |
| Follow-up Reminders | ✓ | ✓ |
| Meeting Summaries | ✓ | ✓ |
| Thread Summarization | — | ✓ |
| Tone Adjustment | ✓ | ✓ |
| Platform & Ecosystem | ||
| Gmail Support | ✓ | — |
| Outlook Support | ✓ | ✓ |
| Cross-Platform (Gmail + Outlook) | ✓ | — |
| Word / Excel / PowerPoint AI | — | ✓ |
| Teams Integration | — | ✓ |
| Pricing | ||
| Free Plan | ✓ | — |
| Email-Only Pricing | From $0/mo | $30/user/mo (full suite) |
| Requires M365 License | — | ✓ |