Exchange Online vs. Exchange 2010
Exchange Online vs. Exchange 2010
Source : Microsoft & Office 365
Exchange Online for Office 365 for enterprises
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Exchange Server 2010
|
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Cost
|
Without the need to purchase, upgrade, and
manage hardware, Exchange Online can help reduce total cost of ownership (not
to mention the burden on overstretched IT staff). Updates, upgrades, and 24/7
IT-level phone support are included in the cost of most Office 365 plans.
|
Product improvements in the areas of storage,
high availability, administration, and more help reduce TCO. You must still
deploy and manage software and hardware in-house.
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Management
& control
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Frees you from many day-to-day management tasks
while providing control over policies, security, compliance, and other key
aspects of the service.
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Provides the greatest degree of control over
configuration and customization.
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Integration
with other productivity workloads
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Automatically configured to work with Lync
Online and SharePoint Online.
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Designed to work seamlessly with Microsoft
Lync and Microsoft SharePoint, but integration must be configured and
managed.
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Reporting
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Rich reports and data available but not at the
same level of detail as Exchange Server.
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Complete visibility into the deployment down
to the level of server logs.
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Anywhere
access
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Accessed securely over the Internet, and
therefore inherently provides mobile access by default.
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Mobile access is easy to set up and manage,
but you must deploy it yourself.
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Mailbox
size
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25 GB by default.
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Configurable to meet your organization’s needs
and policies.
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Compliance
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Same feature set available as in Exchange
Server 2010.
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Personal Archive, legal hold, multi-mailbox
search, and other features help make compliance easier.
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Anti-spam/
antivirus |
Forefront Online Protection for Exchange
included at no extra cost.
|
Microsoft Forefront Online Protection for
Exchange or Microsoft Forefront Protection 2010 for Exchange Server are
included in some of our prouct suites, such as the Enterprise CAL Suite,
Exchange Enterprise CAL with services or may be licensed individually.
|
Regulatory
compliance
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Meets many compliance requirements and Office
365 datacenters have a number of certifications. For organizations that need
to keep data within a certain geographical location, Exchange Server 2010 may
be the optimal choice.
|
Can be configured to meet virtually any
compliance need.
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Reliability
and high availability
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High availability and reliability built in,
including a financially backed, 99.9% uptime guarantee.
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New high availability architecture makes it
easier and less expensive than ever before to implement high availability.
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For Exchange Admins:
Feature
|
Exchange Online
Kiosk |
Exchange Online
(Plan 1) |
Exchange Online
(Plan 2) |
Mailbox size
|
500 megabytes (MB)
|
25 gigabytes (GB)*
|
Unlimited**
|
Outlook Web App
(regular and light versions) |
Yes
|
Yes
|
Yes
|
POP
|
Yes
|
Yes
|
Yes
|
IMAP
|
No
|
Yes
|
Yes
|
Outlook Anywhere (MAPI)
|
No
|
Yes
|
Yes
|
Microsoft Exchange ActiveSync®
|
No
|
Yes
|
Yes
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Exchange Web Services
|
No***
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Yes
|
Yes
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Inbox rules
|
No
|
Yes
|
Yes
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Delegate access
|
No (cannot access other users’ mailboxes, shared mailboxes, or
resource mailboxes)
|
Yes
|
Yes
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Instant messaging interoperability in OWA
|
No
|
Yes (requires Lync Online or Microsoft Lync Server 2010)
|
Yes (requires Lync Online or Microsoft Lync Server 2010)
|
SMS notifications
|
No
|
Yes
|
Yes
|
Custom retention policies
|
Yes
|
Yes
|
Yes
|
Multi-mailbox search
|
Yes
|
Yes
|
Yes
|
Personal archive
|
No
|
Yes
|
Yes
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Voicemail
|
No
|
No
|
Yes
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Legal hold
|
No
|
No
|
Yes
|
Exchange Server 2010
Service Pack 1 |
Exchange Online
|
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SERVICE FEATURES
|
||
Mailbox size
|
Configurable
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500 MB for Exchange Online Kiosk user, 25 GB for Exchange
Online (Plan 1) user, unlimited for Exchange Online (Plan 2) user
|
Message size limits (max attachment size)
|
Configurable
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25 MB
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Recipient limits
|
Configurable
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1,500 recipients/day
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Message rate limits
|
Configurable
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30 messages/minute
|
Deleted item recovery
|
Configurable
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14 Days
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Deleted mailbox recovery
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Configurable
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30 Days
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CLIENT ACCESS
|
||
Outlook 2010
|
Yes
|
Yes
|
Outlook 2007
|
Yes
|
Yes
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Outlook 2003
|
Yes
|
No
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Outlook Anywhere (RPC over HTTPS)
|
Yes
|
Yes
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Outlook Cached Mode
|
Yes
|
Yes
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Outlook Online Mode
|
Yes
|
Yes (not recommended)
|
Autodiscover
|
Yes (for Outlook and mobile)
|
Yes (for Outlook and mobile)
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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
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Outlook Web App: Vanity URL (http://mail.contoso.com)
|
Yes
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Customer can set up a redirect
|
Public/private computer logon option
|
Yes
|
No
|
Outlook Web App: session time-out
|
Configurable
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Default: 6 hours
Configurable up to 24 hours. |
WebReady document viewing
|
Yes
|
Yes
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Disable web access
|
Yes
|
Yes
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Instant messaging and presence connected to web email
client
|
Yes
|
Yes
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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
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MOBILITY
|
||
Windows Phone 7 devices
|
Yes
|
Yes
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Windows Mobile devices
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Windows Mobile 5.0+
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Windows Mobile 6.0+
|
Other Exchange ActiveSync devices (such as iPhone)
|
Yes
|
Yes
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Remote device wipe (implementation varies by mobile
device manufacturer)
|
Yes
|
Yes
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Customize Exchange ActiveSync security policies and
settings, including PIN/password lock
|
Yes
|
Yes
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Disable Exchange ActiveSync access
|
Yes
|
Yes
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Mobile device allow/block/quarantine
|
Yes
|
Yes
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Certificate-based authentication for Exchange ActiveSync
|
Yes
|
No
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Over-the-air-update for Outlook Mobile
|
Yes
|
Yes
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Mobile SMS sync (through Exchange ActiveSync)
|
Yes
|
Yes
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SMS (text messaging) notifications
|
Yes
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Yes
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BlackBerry (via Blackberry Enterprise Server)
|
Yes
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Coming later this year
|
BlackBerry (via Blackberry Internet Service)
|
Yes
|
Yes
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EMAIL/INBOX
|
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“Send on behalf of” and “send as”
|
Yes
|
Yes
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Shared mailboxes
|
Yes
|
Yes
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Catch-all mailbox
|
Yes
|
No
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Server-side email forwarding
|
Yes
|
Yes
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Inbox rules
|
Yes
|
Yes
|
Tasks
|
Yes
|
Yes
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Conversation view and actions (such as ignore
conversation)
|
Yes
|
Yes
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MailTips and MailTips customization
|
Yes
|
Yes
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Connected accounts (aggregate mail from multiple external
email accounts)
|
No
|
Yes
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CONTACTS/DIRECTORY
|
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Personal contacts
|
Yes
|
Yes
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Personal distribution groups
|
Yes
|
Yes
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Shared distribution groups
(in Global Address List) |
Yes
|
Yes—managed via web or synchronized from Active Directory
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Restricted distribution groups
|
Yes
|
Yes
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Dynamic distribution groups
|
Yes
|
Yes
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Moderated distribution groups
|
Yes
|
Yes
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Self-service distribution groups
|
Yes
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Yes (for groups not synchronized from on-premises Active Directory)
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Global Address List
|
Yes
|
Yes
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Hide users from Global Address List
|
Yes
|
Yes
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Custom address lists
|
Yes
|
No
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Hierarchical address lists
|
Yes
|
No
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Global Address List segmentation
|
No
|
No
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Offline Address Book
|
Yes
|
Yes
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External contacts (in Global Address List)
|
Yes
|
Yes
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CALENDAR
|
||
Out-of-office auto-replies
|
Yes
|
Yes
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Cross-premises calendar free/busy (mix of
on-premises/cloud users)
|
Not applicable
|
Yes
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Federated calendar sharing
|
Yes
|
Yes
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Publish or subscribe to calendar thorugh iCal
|
Yes
|
Yes
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Side-by-side calendar view in web client
|
Yes
|
Yes
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Resource mailboxes (for example, for conference rooms or
equipment)
|
Yes
|
Yes
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Outlook 2010 Room Finder
|
Yes
|
Yes
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UNIFIED MESSAGING, FAX
|
||
Interoperability with on-premises voicemail systems
|
Yes
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Via SMTP or Exchange Web Services
|
Exchange Unified Messaging (hosted voicemail)
|
Yes
|
Yes
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SECURITY
|
||
Anti-spam (AS)
|
Customer chooses AV/AS solution
|
Forefront Online Protection for Exchange
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Antivirus (AV)
|
Customer chooses AV/AS solution
|
Forefront Protection for Exchange
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Safe and blocked senders (configurable at the
organization level)
|
Yes
|
Yes
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Opportunistic TLS for inbound/outbound email
|
Yes
|
Yes
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Forced TLS for inbound/outbound email
|
Yes
|
Yes
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S/MIME
|
Yes
|
Yes, with limitations
No Outlook Web App support
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PGP
|
Yes
|
Yes
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COMPLIANCE/ARCHIVING
|
||
Disclaimers
|
Yes
|
Yes
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Transport rules
|
Yes
|
Yes
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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
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ADMINISTRATION
|
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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
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Role-Based Access Controls (RBAC)
|
Yes
|
Yes
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Message tracking
|
Yes
|
Yes
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Usage reporting
|
Some data can be extracted using PowerShell
|
Some data can be extracted using PowerShell
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Auditing
|
Yes
|
Yes
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APPLICATION ACCESS/CUSTOMIZATION
|
||
Application connectivity through web services
|
Yes
|
Yes
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SMTP relay
|
Yes
|
Yes
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Outlook Web App Web Parts
|
Yes
|
Yes
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Outlook add-ins and Outlook MAPI
|
Yes
|
Yes
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Application connectivity through Exchange Server MAPI/CDO
API
|
Yes
|
No
|
Application connectivity through DAV
|
No
|
No
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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
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Source : Microsoft & Office 365
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