Best AI Email Assistant for Microsoft 365 (2026)

2026-08-27 · Sovattha Sok

Best AI email assistant for Microsoft 365 (2026) — Copilot cross-app AI vs Agentys hands-free email. How they compare and why they work better together.

Copilot for Microsoft 365 offers cross-app AI intelligence. Agentys offers email-specific autonomy. For teams using M365 for everything, here's how to choose — or use both.

Copilot for M365: The Cross-App AI Advantage

Where Copilot Falls Short for Email-Heavy Professionals

Agentys + Microsoft 365: Better Together

Microsoft 365 Copilot shines as a cross-app AI layer for organizations deep in the Microsoft ecosystem. But for email-specific productivity, its assistive approach and $30/mo price leave room for a dedicated solution. Agentys fills that gap with AI-driven overnight drafting, per-contact voice learning, and cross-platform Gmail support — at under $20/month. Use them together for complete coverage, or choose Agentys alone for focused email AI. Start your 14-day free trial at agentys.io. For organizations with strict compliance requirements, Copilot's enterprise certifications and data residency controls may outweigh Agentys's productivity advantages.