Kosh vs Microsoft 365
Enterprise domain email without the Exchange admin console nightmare.
Microsoft 365 forces small teams into a labyrinth of Exchange administration, complex tenant roles, and sluggish desktop Outlook clients. Kosh strips away legacy enterprise friction to give you sleek, instant custom domain mailboxes that just work.
Per-seat pricing that multiplies with every hire and alias you add.
Save over $1,500/year while cutting administrative overhead
Why Modern Teams Switch to Kosh
No Exchange Complexity
Configure mailboxes in seconds with clean intuitive settings instead of navigating nested 90s-era Microsoft admin panels.
Built for Modern Web Velocity
A snappy, distraction-free modern client designed for instant responsiveness on any device.
Simple, Predictable Economics
No sudden tier upgrades, hidden tenant licensing costs, or multi-year enterprise lock-ins.
Annual Cost Comparison
See how annual expenses compound as your team scales.
| Team Size | Microsoft 365 | Kosh | Annual Savings |
|---|---|---|---|
| 5 Mailboxes | $420/yr | $60/yr | +$360/yr |
| 15 Mailboxes | $1,260/yr | $60/yr | +$1,200/yr |
| 25 Mailboxes | $2,100/yr | $60/yr | +$2,040/yr |
| 50 Mailboxes | $4,200/yr | $149/yr | +$4,051/yr |
Detailed Feature Comparison
| Feature | Kosh | Microsoft 365 |
|---|---|---|
Pricing Model Predictable infrastructure without per-head taxes. | Predictable Flat Plans | Per user monthly fee |
Setup & Propagation Time Instant verification vs delayed Exchange provisioning. | Under 60 seconds | Up to 24 - 48 hours |
Standard Mail Client Support Connect seamlessly via web, mobile, or standard IMAP/SMTP clients. | Supported | Supported |
Clean Minimalist Interface Fast distraction-free workflow without Microsoft 365 ribbon bloat. | Supported | No |
Switch in 3 Simple Steps
Zero downtime. Never lose an incoming email during transition.
Add Your Domain
Enter your custom business domain into Kosh.
Add DNS Records
Copy our pre-generated MX, SPF & DKIM keys to your registrar.
Start Sending
Automated verification confirms active propagation in 60 seconds.
Frequently Asked Questions
How difficult is it to switch from Microsoft 365 / Exchange to Kosh?
It takes under 2 minutes. Add your domain, update your DNS records as prompted by our automated verification assistant, and your inboxes are ready.
Switch from Microsoft 365 today
Get private custom domain mailboxes that scale effortlessly with your team.