Pricing comparison
Fastmail vs Microsoft 365
Side-by-side pricing breakdown for Workspace & Email Suites decision-makers
Each amount uses its recorded currency; no currency conversion is applied. Confirm billing units, commitments, and current regional terms.
Compare the plan that fits your requirements
Check billing units, included usage and renewal terms. Starting prices alone do not establish an overall winner.
Dataset dated 2026-04-21. Sources: Fastmail pricing and Microsoft 365 pricing.
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Recorded starting rates: Fastmail Price unavailable; Microsoft 365 $6/mo. Billing units and commitments can differ. Compare the plans that include your required features, then request quotes for the same quantity and term.
Feature Comparison
| Feature | | |
|---|---|---|
| email focused | No productivity apps like Word/Excel - email + calendar + contacts only | Not recorded |
| jmap protocol | Open JMAP standard protocol - provider portability | Not recorded |
| imap caldav carddav | Open standards for third-party client access | Not recorded |
| custom domains | All business plans | Not recorded |
| encryption at rest | All plans | Not recorded |
| 24 7 support | All plans | Not recorded |
| scheduled send | Standard+ | Not recorded |
| snooze | Standard+ | Not recorded |
| email retention archive | Confirm the required retention, export and administrative controls. | Not recorded |
| masked email | Built-in alias generation for privacy | Not recorded |
| no advertising | Confirm current privacy and advertising terms. | Not recorded |
| australia headquartered | FastMail Pty Ltd based in Melbourne | Not recorded |
| 2 year discount | Compare the full two-year commitment with the current monthly quote. | Not recorded |
| microsoft teams | Not recorded | Basic+ tiers |
| outlook exchange email | Not recorded | Basic+ (50 GB per user) |
| onedrive | Not recorded | 1 TB per user Basic+ |
| sharepoint | Not recorded | Basic+ |
| word excel powerpoint | Not recorded | Web apps Basic / Desktop Standard+ |
| clipchamp video editor | Not recorded | Standard+ |
| webinars | Not recorded | Standard+ |
| intune mobile device management | Not recorded | Business Premium+ |
| defender security | Not recorded | Business Premium+ |
| azure information protection | Not recorded | Business Premium+ |
| conditional access | Not recorded | Business Premium+ |
| power bi pro | Not recorded | Confirm the included analytics license for the exact subscription. |
| advanced compliance | Not recorded | Not assessed by StackScored; verify scope, vendor terms, and your obligations. |
| voice calling | Not recorded | E5 only |
| copilot ai | Not recorded | Confirm current inclusion, eligible base plans and any separate fee. |
| max users | Not recorded | 300 Business tiers / Unlimited Enterprise |
| excel desktop dominance | Not recorded | Evaluate required spreadsheet functions and file compatibility. |
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Dive Deeper
Microsoft 365
About the workspace & email suites category
Workspace subscriptions can bundle business email, files, office apps, meetings and administration. Email-only products cover a different scope. Compare the applications and licensed users you actually need.
How to choose between workspace & email suites options
Check document compatibility, mailbox and file storage, custom domains, meeting requirements and administration. Confirm the exact regional edition and distinguish web apps, desktop licenses and separately priced AI features.
Building Your Business Stack?
Decision-makers comparing tools often need more than one category. Here are related comparisons:
Frequently Asked Questions
- How do Fastmail and Microsoft 365 prices compare?
- Fastmail: Price unavailable. Microsoft 365: $6/mo. These are recorded starting prices; compare billing units, included usage and contract terms before treating them as equivalent costs.
- Which is better for my requirements, Fastmail or Microsoft 365?
- Compare the recorded features and plan limits against your requirements, then confirm them with each vendor. This page does not establish hands-on testing or an overall winner.
- What happens after the first billing term?
- Use any recorded renewal rate as a dated observation. When a future rate is missing, ask the vendor; do not assume the starting price remains unchanged.