Compare Office 365 Exchange Online Plans

Office 365 Exchange Online Plans Comparison

Microsoft Exchange Online is a hosted email, calendar, contacts and tasks solution that delivers the capabilities of Microsoft Exchange Server as a cloud-based service. Exchange Online is essentially based on Microsoft Exchange Server, hence it supports most if not all features of on-premise Exchange Server including full integration with Active Directory, group policy support, and familiar messaging experience across various forms of PCs, computers, The Web, smartphones and mobile devices.

Exchange Online is one of the product under the umbrella of Office 365, and it’s included in many Office 365 plans that include email service. Exchange Online is also available for subscription on a standalone basis for users who just need a hosted Exchange service without other unnecessary add-ons.

As a standalone SKU, Exchange Online has three plans available, namely Exchange Online Plan 1, Exchange Online Plan 2 and Exchange Online Kiosk. All Exchange Online plans can have an unlimited number of users. The table below describes the differences and comparison between features and functionality available in each different plans.

 

Exchange Online Plan 1

Exchange Online Plan 2

Exchange Online Kiosk

Office 365 SKUs & Plans Inclusion

  • Office 365 Business Essentials

  • Office 365 Business Premium

  • Office 365 Enterprise E1

  • Office 365 Government E1

  • Office 365 Enterprise E3

  • Office 365 Education E3

  • Office 365 Government E3

  • Office 365 Enterprise E4

  • Office 365 Education E4

  • Office 365 Government E4

  • Office 365 Enterprise K1

  • Office 365 Government K1

Planning and Deployment

Exchange Online Plan 1

Exchange Online Plan 2

Exchange Online Kiosk

Hybrid deployment supported

office 365 tick

office 365 tick

office 365 tick

IMAP migration supported

office 365 tick

office 365 tick

office 365 tick

Cutover migration supported

office 365 tick

office 365 tick

office 365 tick

Staged migration supported

office 365 tick

office 365 tick

office 365 tick

Permissions

Exchange Online Plan 1

Exchange Online Plan 2

Exchange Online Kiosk

Role-Based Permissions

office 365 tick

office 365 tick

Role Groups

office 365 tick

office 365 tick

Role Assignment Policies

office 365 tick

office 365 tick

Message Policy and Compliance

Exchange Online Plan 1

Exchange Online Plan 2

Exchange Online Kiosk

Archiving Exchange Online-based Mailboxes

office 365 tick

office 365 tick

Cloud-Based Archiving of On-Premises Mailboxes

Retention Tags and Retention Policies

office 365 tick

office 365 tick

office 365 tick

Encryption of data at rest (BitLocker)

office 365 tick

office 365 tick

office 365 tick

IRM using Azure RMS (requires add-on purchase, included in E3 & E4)

IRM using Windows Server AD RMS

office 365 tick

office 365 tick

office 365 tick

Office 365 Message Encryption (depends on Azure RMS)

S/MIME

office 365 tick

office 365 tick

office 365 tick

In-Place Hold and Litigation Hold

office 365 tick

In-Place eDiscovery

office 365 tick

office 365 tick

office 365 tick

Transport Rules

office 365 tick

office 365 tick

office 365 tick

Data Loss Prevention

office 365 tick

Journaling

office 365 tick

office 365 tick

office 365 tick

Anti-Spam and Anti-Malware Protection

Exchange Online Plan 1

Exchange Online Plan 2

Exchange Online Kiosk

Built-In Anti-Spam Protection

office 365 tick

office 365 tick

office 365 tick

Customize Anti-Spam Policies

office 365 tick

office 365 tick

office 365 tick

Built-In Anti-Malware Protection

office 365 tick

office 365 tick

office 365 tick

Customize Anti-Malware Policies

office 365 tick

office 365 tick

office 365 tick

Quarantine – administrator management

office 365 tick

office 365 tick

office 365 tick

Quarantine – administrator management

office 365 tick

office 365 tick

office 365 tick

Quarantine – end-user self-management

office 365 tick

office 365 tick

office 365 tick

Mail Flow

Exchange Online Plan 1

Exchange Online Plan 2

Exchange Online Kiosk

Custom Routing of Outbound Mail

office 365 tick

office 365 tick

office 365 tick

Secure Messaging with a Trusted Partner

office 365 tick

office 365 tick

office 365 tick

Conditional Mail Routing

office 365 tick

office 365 tick

office 365 tick

Adding Partner to an Inbound Safe List

office 365 tick

office 365 tick

office 365 tick

Hybrid Email Routing

office 365 tick

office 365 tick

office 365 tick

Recipients

Exchange Online Plan 1

Exchange Online Plan 2

Exchange Online Kiosk

Capacity Alerts

office 365 tick

office 365 tick

office 365 tick

Clutter

office 365 tick

office 365 tick

office 365 tick

MailTips

office 365 tick

office 365 tick

office 365 tick

Delegate Access

office 365 tick

office 365 tick

Inbox Rules

office 365 tick

office 365 tick

Connected Accounts

office 365 tick

office 365 tick

office 365 tick

Inactive Mailboxes

office 365 tick

office 365 cross

Offline Address Book

office 365 tick

office 365 tick

office 365 tick

Address Book Policies

office 365 tick

office 365 tick

office 365 tick

Hierarchical Address Book

office 365 tick

office 365 tick

Address Lists and Global Address List

office 365 tick

office 365 tick

office 365 tick

Distribution Groups

office 365 tick

office 365 tick

office 365 tick

External Contacts (global)

office 365 tick

office 365 tick

office 365 tick

Universal Contact Card

office 365 tick

office 365 tick

office 365 tick

Contact Linking with Social Networks

office 365 tick

office 365 tick

office 365 tick

Resource Mailboxes

office 365 tick

office 365 tick

office 365 tick

Conference Room Management

office 365 tick

office 365 tick

office 365 tick

Out-of-Office Replies

office 365 tick

office 365 tick

office 365 tick

Calendar Sharing

office 365 tick

office 365 tick

office 365 tick

Reporting Features and Troubleshooting Tools

Exchange Online Plan 1

Exchange Online Plan 2

Exchange Online Kiosk

Office 365 admin center reports

office 365 tick

office 365 tick

office 365 tick

Excel Reporting Workbook

office 365 tick

office 365 tick

office 365 tick

Web Services Reports

office 365 tick

office 365 tick

office 365 tick

Message Trace

office 365 tick

office 365 tick

office 365 tick

Auditing Reports

office 365 tick

office 365 tick

office 365 tick

Unified Messaging Reports

office 365 tick

Sharing and Collaboration

Exchange Online Plan 1

Exchange Online Plan 2

Exchange Online Kiosk

Federated Sharing

office 365 tick

office 365 tick

office 365 tick

Site Mailboxes (requires SharePoint Online)

office 365 tick

office 365 tick

office 365 tick

Public Folders

office 365 tick

office 365 tick

Clients and Mobile Devices

Exchange Online Plan 1

Exchange Online Plan 2

Exchange Online Kiosk

Microsoft Outlook

office 365 tick

office 365 tick

Outlook Web App

office 365 tick

office 365 tick

office 365 tick

Exchange ActiveSync

office 365 tick

office 365 tick

office 365 tick

POP and IMAP

office 365 tick

office 365 tick

 office 365 tick

(no IMAP)

SMTP

office 365 tick

office 365 tick

office 365 tick

EWS Application support

office 365 tick

office 365 tick

Outlook for Mac

office 365 tick

office 365 tick

Voice Message Services

Exchange Online Plan 1

Exchange Online Plan 2

Exchange Online Kiosk

Voice Mail

office 365 tick

Third-Party Voice Mail Interoperability

office 365 tick

office 365 tick

office 365 tick

Skype for Business Integration

office 365 tick

office 365 tick

office 365 tick

High Availability and Business Continuity

Exchange Online Plan 1

Exchange Online Plan 2

Exchange Online Kiosk

Mailbox Replication at Data Centers

office 365 tick

office 365 tick

office 365 tick

Deleted Mailbox Recovery

office 365 tick

office 365 tick

office 365 tick

Deleted Item Recovery

office 365 tick

office 365 tick

office 365 tick

Single Item Recovery

office 365 tick

office 365 tick

Interoperability, Connectivity, and Compatibility

Exchange Online Plan 1

Exchange Online Plan 2

Exchange Online Kiosk

Skype for Business Presence in OWA

office 365 tick

office 365 tick

SharePoint Interoperability

office 365 tick

office 365 tick

office 365 tick

EWS Connectivity Support

office 365 tick

office 365 tick

office 365 tick

SMTP Relay Support

office 365 tick

office 365 tick

office 365 tick

Exchange Online Administration and Management

Exchange Online Plan 1

Exchange Online Plan 2

Exchange Online Kiosk

Microsoft Office 365 portal access

office 365 tick

office 365 tick

office 365 tick

Microsoft Office 365 admin center access

office 365 tick

office 365 tick

Exchange admin center access

office 365 tick

office 365 tick

office 365 tick

Remote Windows PowerShell access

office 365 tick

office 365 tick

office 365 tick

ActiveSync Policies for Mobile Devices

office 365 tick

office 365 tick

office 365 tick

Usage Reporting

office 365 tick

office 365 tick

office 365 tick

Customization, Add-ins, and Resources for Exchange Online

Exchange Online Plan 1

Exchange Online Plan 2

Exchange Online Kiosk

Outlook Web App Web Parts

office 365 tick

office 365 tick

office 365 tick

Outlook Add-Ins and Outlook MAPI

office 365 tick

office 365 tick

Address Book Limits

Exchange Online Plan 1

Exchange Online Plan 2

Exchange Online Kiosk

Address List

 1000

1000

1000

Offline Address Book (OAB)

250

250

250

Address Book Policies (ABP)

250

250

250

Global Address Lists

250

250

250

Storage Limits

Exchange Online Plan 1

Exchange Online Plan 2

Exchange Online Kiosk

User Mailboxes

50 GB

50 GB

2 GB

Archive Mailboxes

Shared with Primary

No Limit

Not Available

Shared Mailboxes

50 GB

50 GB

Not Available

Resource Mailboxes

50 GB

50 GB

50 GB

Public Folder Mailboxes (Max 50)

50 GB

50 GB

Not Available

Mailbox Folder Limits

Exchange Online Plan 1

Exchange Online Plan 2

Exchange Online Kiosk

Maximum number of messages per mailbox folder

1 million

1 million

1 million

Maximum number of messages per folder in the Recoverable Items folder

3 million

3 million

3 million

Maximum number of subfolders per mailbox folder

1,000

1,000

1,000

Maximum folder hierarchy depth

300

300

300

Maximum number of public folders

100,000

100,000

Not Available

Maximum number of subfolders per public folder

1,000

1,000

Not Available

Message Limits

Exchange Online Plan 1

Exchange Online Plan 2

Exchange Online Kiosk

Message size limit

25 MB

25 MB

25 MB

Message size limit – migration

150 MB

150 MB

150 MB

Subject length limit

255 characters

255 characters

255 characters

File attachments limit

250 attachments

250 attachments

250 attachments

File attachment size limit

25 MB

25 MB

25 MB

Multipart message limit

250 parts

250 parts

250 parts

Embedded message depth limit

30 embedded messages

30 embedded messages

30 embedded messages

Recipient and Sender Limits

Exchange Online Plan 1

Exchange Online Plan 2

Exchange Online Kiosk

Recipient rate limit

10,000 recipients per day

10,000 recipients per day

10,000 recipients per day

Recipient limit

500 recipients

500 recipients

500 recipients

Distribution Groups Limits

Exchange Online Plan 1

Exchange Online Plan 2

Exchange Online Kiosk

Maximum number of distribution group members

100,000 members

100,000 members

100,000 members

Limit sending messages to large distribution group

5,000 or more members

5,000 or more members

5,000 or more members

Maximum message size for large distribution groups

2 MB

2 MB

2 MB

Transport and Inbox Rule Limits

Exchange Online Plan 1

Exchange Online Plan 2

Exchange Online Kiosk

Maximum number of transport rules

300 rules

300 rules

300 rules

Maximum size of an individual transport rule

8 KB

8 KB

8 KB

Character limit (in KB) for all regular expressions used in all transport rules

20 KB

20 KB

20 KB

Maximum number of recipients added to a message by all transport rules

100 recipients

, 100 recipients,

Forward limit

10 recipients

10 recipients

10 recipients

Number of times a message is redirected

1 redirection

1 redirection

1 redirection

Moderation Limits

Exchange Online Plan 1

Exchange Online Plan 2

Exchange Online Kiosk

Maximum size of the arbitration mailbox

10 GB

10 GB

10 GB

Maximum number of moderators

10 moderators

10 moderators

10 moderators

Expiration for messages waiting for moderation

2 days

2 days

2 days

Maximum rate for expired moderation notification messages

300 expiration notifications per hour

300 expiration notifications per hour

300 expiration notifications per hour

Exchange ActiveSync Limits

Exchange Online Plan 1

Exchange Online Plan 2

Exchange Online Kiosk

Exchange ActiveSync device limit

100

100

100

Exchange ActiveSync device deletion limit

20

20

20

Exchange ActiveSync file attachment limit

25 MB

25 MB

25 MB