Microsoft Exchange Online vs Amazon WorkMail

Microsoft Exchange Online9.2Visit Amazon WorkMail8.5Visit

Higher score Microsoft Exchange Online #2 in Email Hosting 9.2/10 Paid ✓ 1 of 3 features Visit Microsoft

vs

Amazon WorkMail #8 in Email Hosting 8.5/10 30-day trial Free trial✓ 3 of 3 features Try Amazon WorkMail

• Microsoft Exchange Online fits best

  Outlook-centered businesses and administrators

• Amazon WorkMail fits best

  AWS-aligned businesses needing managed email

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Side by side

Feature	Microsoft Exchange Online 9.2/10 Visit ↗	Amazon WorkMail 8.5/10 Visit ↗
At a glance
Editor score	9.2	8.5
Ranking	#2 in Email Hosting	#8 in Email Hosting
Best for	Outlook-centered businesses and administrators	AWS-aligned businesses needing managed email
Pricing model	Paid	Paid
Starting price	—	$4/user/mo
Free plan	—	—
Free trial	—	30 days
Deployment	Cloud, Browser extension	Cloud
Platforms	Web, Windows, macOS, iOS, Android	Web, Windows, macOS, iOS, Android
Support	Phone, Docs · 24/7	Docs
Integrations	2 integrations	9 integrations
Built for	Small business, Mid-market, Enterprise	Small business, Mid-market, Enterprise
Features Microsoft Exchange Online 1/3 · Amazon WorkMail 3/3
IMAP/POP support	Not checked yet	✓ (best)
Calendar included	Not checked yet	✓ (best)
Migration tools	✓	✓
Specs
Storage per mailbox	50 GB	50 GB
Email aliases	Not checked yet	100 aliases
Attachment limit	Not checked yet	25 MB
Mobile app access	Not checked yet	Third_party
Our review
Pros	50 GB mailboxes, with up to 1.5 TB archives on Plan 2 Migration support for Exchange, IMAP, PST, and other systems Shared mailboxes, compliance tools, and Microsoft Graph access	50 GB mailboxes with email, calendars, contacts, and synchronization AWS directory, encryption-key, and regional data-storage integrations Exchange interoperability, journaling, and mailbox migration support
Cons	There is no free plan Higher storage and built-in data loss prevention require Plan 2 Some archive capabilities depend on licensing and administrator enablement	Service support is scheduled to end on March 31, 2027 Mobile access relies on third-party clients rather than a first-party app Best suited to organizations already invested in AWS or Microsoft ecosystems
Our verdict	Microsoft Exchange Online is a cloud-hosted business email and calendaring service for organizations that need custom-domain email, Outlook access, mailbox administration, and compliance features. It supports email, calendars, and contacts… Read the review →	Amazon WorkMail is a managed business email and calendaring service for organizations that want hosted mailboxes without operating their own email infrastructure. It provides 50 GB of storage per user, web access, email and calendar… Read the review →

Strengths and trade-offs

• Microsoft Exchange Online — where it wins

  • 50 GB mailboxes, with up to 1.5 TB archives on Plan 2
  • Migration support for Exchange, IMAP, PST, and other systems
  • Shared mailboxes, compliance tools, and Microsoft Graph access

  Where it doesn't

  • There is no free plan
  • Higher storage and built-in data loss prevention require Plan 2
  • Some archive capabilities depend on licensing and administrator enablement

• Amazon WorkMail — where it wins

  • 50 GB mailboxes with email, calendars, contacts, and synchronization
  • AWS directory, encryption-key, and regional data-storage integrations
  • Exchange interoperability, journaling, and mailbox migration support

  Where it doesn't

  • Service support is scheduled to end on March 31, 2027
  • Mobile access relies on third-party clients rather than a first-party app
  • Best suited to organizations already invested in AWS or Microsoft ecosystems

• Microsoft Exchange Online9.2/10 · Paid

  A deep Exchange service for organizations centered on Outlook and administration.

  Visit MicrosoftFull verdict →
• Amazon WorkMail8.5/10 · 30-day trial

  A capable $4 mailbox service for AWS environments, with support ending March 31, 2027.

  Try Amazon WorkMailFull verdict →