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Exchange Online and Exchange Server Feature Comparison

Exchange Online and Exchange Server Feature Comparison

  Exchange Server 2010
Service Pack 1
Exchange Online
SERVICE FEATURES    
Mailbox size Configurable 500 MB (Exchange Online Kiosk user)25 GB (Exchange Online Plan 1 user)

Unlimited (Exchange Online Plan 2 user)

Message size limits (max attachment size) Configurable 25 MB
Recipient limits Configurable 500 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
Outlook Web App: session time-out Configurable Default: 6 hours
Configurable up to 24 hours.
Public/private computer logon option Yes No
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,
Entourage 2008 Web Services Edition
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 Hosted BlackBerry service not offered during beta
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
(in Global Address List)
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 thorugh 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
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 limitationsNo 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
No: Exchange 2007-style managed folders
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 Controls (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

 

More information here:  http://www.microsoft.com/downloads/en/details.aspx?FamilyID=6c6ecc6c-64f5-490a-bca3-8835c9a4a2ea

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