Exchange Server 2010 SP1 and Exchange Online (Office 365) Feature Comparison
This Wiki article explains difference between Exchange Online (Office 365) and Exchange Server 2010 Service Pack 1. Be sure to also check out the Exchange Deployment Options Whitepaper, available at the Microsoft Download Center. The whitepaper goes into details about various deployment options available and will help you as you decide between Exchange 2010 and Exchange Online (Office 365).
|
Exchange 2010 SP1 |
Exchange Online (Office 365) |
|---|---|---|
SERVICE FEATURES |
|
|
Mailbox size |
Configurable |
500 MB for Exchange Online Kiosk user, 25 GB for Exchange Online Plan 1 user. In Office 365 Business Premium Mailbox size up to 50 GB |
Message size limits (max attachment size) |
Configurable |
25 MB |
Recipient limits |
Configurable |
10 000 recipients/day |
Message rate limits |
Configurable |
30 messages/minute |
Deleted item recovery |
Configurable |
14 Days |
Deleted mailbox recovery |
Configurable |
30 Days |
CLIENT ACCESS |
|
|
Outlook 2010 |
Yes |
Yes |
Outlook 2007 |
Yes |
Yes |
Outlook 2003 |
Yes |
No |
Outlook Anywhere (RPC over HTTPS) |
Yes |
Yes |
Outlook Cached Mode |
Yes |
Yes |
Outlook Online Mode |
Yes |
Yes (not recommended) |
Autodiscover |
Yes (for Outlook and mobile) |
Yes (for Outlook and mobile) |
Outlook Web App |
Internet Explorer 7+, Safari 3+, Firefox, Chrome |
Internet Explorer 7+, Safari 3+, Firefox, Chrome |
Outlook Web App light experience |
Almost any browser |
Almost any browser |
Outlook Web App: Vanity URL (http://mail.contoso.com) |
Yes |
Customer can set up a redirect |
Public/private computer logon option |
Yes |
No |
Outlook Web App: session time-out |
Configurable |
Default: 6 hours |
WebReady document viewing |
Yes |
Yes |
Disable web access |
Yes |
Yes |
Instant messaging and presence connected to web email client |
Yes |
Yes |
Macintosh support (rich client) |
Outlook for Mac 2011, Entourage 2008 Web Services Edition |
Outlook for Mac 2011, |
IMAP |
Yes |
Yes |
POP |
Yes |
Yes |
MOBILITY |
|
|
Windows Phone 7 devices |
Yes |
Yes |
Windows Mobile devices |
Windows Mobile 5.0+ |
Windows Mobile 6.0+ |
Other Exchange ActiveSync devices (such as iPhone) |
Yes |
Yes |
Remote device wipe (implementation varies by mobile device manufacturer) |
Yes |
Yes |
Customize Exchange ActiveSync security policies and settings, including PIN/password lock |
Yes |
Yes |
Disable Exchange ActiveSync access |
Yes |
Yes |
Mobile device allow/block/quarantine |
Yes |
Yes |
Certificate-based authentication for Exchange ActiveSync |
Yes |
No |
Over-the-air-update for Outlook Mobile |
Yes |
Yes |
Mobile SMS sync (through Exchange ActiveSync) |
Yes |
Yes |
SMS (text messaging) notifications |
Yes |
Yes |
BlackBerry (via Blackberry Enterprise Server) |
Yes |
Coming later this year |
BlackBerry (via Blackberry Internet Service) |
Yes |
Yes |
EMAIL/INBOX |
|
|
“Send on behalf of” and “send as” |
Yes |
Yes |
Shared mailboxes |
Yes |
Yes |
Catch-all mailbox |
Yes |
No |
Server-side email forwarding |
Yes |
Yes |
Inbox rules |
Yes |
Yes |
Tasks |
Yes |
Yes |
Conversation view and actions (such as ignore conversation) |
Yes |
Yes |
MailTips and MailTips customization |
Yes |
Yes |
Connected accounts (aggregate mail from multiple external email accounts) |
No |
Yes |
CONTACTS/DIRECTORY |
|
|
Personal contacts |
Yes |
Yes |
Personal distribution groups |
Yes |
Yes |
Shared distribution groups |
Yes |
Yes—managed via web or synchronized from Active Directory |
Restricted distribution groups |
Yes |
Yes |
Dynamic distribution groups |
Yes |
Yes |
Moderated distribution groups |
Yes |
Yes |
Self-service distribution groups |
Yes |
Yes (for groups not synchronized from on-premises Active Directory) |
Global Address List |
Yes |
Yes |
Hide users from Global Address List |
Yes |
Yes |
Custom address lists |
Yes |
No |
Hierarchical address lists |
Yes |
No |
Global Address List segmentation |
Yes |
No |
Offline Address Book |
Yes |
Yes |
External contacts (in Global Address List) |
Yes |
Yes |
CALENDAR |
|
|
Out-of-office auto-replies |
Yes |
Yes |
Cross-premises calendar free/busy (mix of on-premises/cloud users) |
Not applicable |
Yes |
Federated calendar sharing |
Yes |
Yes |
Publish or subscribe to calendar through iCal |
Yes |
Yes |
Side-by-side calendar view in web client |
Yes |
Yes |
Resource mailboxes (for example, for conference rooms or equipment) |
Yes |
Yes |
Outlook 2010 Room Finder |
Yes |
Yes |
UNIFIED MESSAGING, FAX |
|
|
Interoperability with on-premises voicemail systems |
Yes |
Via SMTP or Exchange Web Services |
Exchange Unified Messaging (hosted voicemail) |
Yes |
Yes |
SECURITY |
|
|
Anti-spam (AS) |
Customer chooses AV/AS solution |
Forefront Online Protection for Exchange |
Antivirus (AV) |
Customer chooses AV/AS solution |
Forefront Protection for Exchange |
Safe and blocked senders (configurable at the organization level) |
Yes |
Yes |
Opportunistic TLS for inbound/outbound email |
Yes |
Yes |
Forced TLS for inbound/outbound email |
Yes |
Yes |
S/MIME |
Yes |
Yes, with limitations No Outlook Web App support |
PGP |
Yes |
Yes |
COMPLIANCE/ARCHIVING |
|
|
Disclaimers |
Yes |
Yes |
Transport rules |
Yes |
Yes |
Personal archive |
Yes |
Yes |
Retention policies |
Yes |
Yes: Exchange 2010 retention policies |
Journal messages to external or on-premises archive |
Yes |
Yes |
Multi-mailbox search (e-discovery) |
Yes |
Yes |
Legal hold |
Yes |
Yes |
Rolling legal hold (single item recovery) |
Yes |
Yes |
ADMINISTRATION |
|
|
Administration through a Web-based interface (Exchange Control Panel) |
Yes |
Yes |
Forefront Online Protection for Exchange Administration Center access |
Optional |
Yes |
Administration through command line shell (PowerShell) |
Yes |
Yes |
Role-Based Access Control (RBAC) |
Yes |
Yes |
Message tracking |
Yes |
Yes |
Usage reporting |
Some data can be extracted using PowerShell |
Some data can be extracted using PowerShell |
Auditing |
Yes |
Yes |
APPLICATION ACCESS/CUSTOMIZATION |
|
|
Application connectivity through web services |
Yes |
Yes |
SMTP relay |
Yes |
Yes |
Outlook Web App Web Parts |
Yes |
Yes |
Outlook add-ins and Outlook MAPI |
Yes |
Yes |
Application connectivity through Exchange Server MAPI/CDO API |
Yes |
No |
Application connectivity through DAV |
No |
No |
OTHER |
|
|
Public folders |
Yes |
No |
Global Address List synchronization from on-premises directory (Active Directory) |
Not applicable |
Yes—one-way through the Directory Synchronization tool |
Global Address List synchronization from multiple on-premises Active Directory forests |
Yes |
No |
For a full product comparison, please refer to Office 365 for Enterprise Service Descriptions and download the Microsoft Exchange Online for Enterprises Service Description.docx file.