Microsoft Exchange Online

Exchange Online is your business-class email service hosted in the public cloud. Exchange Online is available as a stand-alone service or as part of an Office 365 plan.

Data Loss Prevention keeps users from accidentally sending sensitive information to unauthorized contacts

Exchange Online Features

With Exchange Online, it is easier than ever to provide your users with the business-class email they need to stay productive. Automatic patching and updates eliminate the time and effort of maintaining your system and thus reduces costs. Give your users an In-Place Archive, so they can keep all their important data in one place. Additionally, you can provide them with access to email, calendar, and contacts on all major browsers and across devices no matter where they are. They will enjoy a rich, familiar email experience with offline access thanks to integration with Outlook.

Exchange Online helps protect your information with advanced capabilities. Anti-malware and anti-spam filtering protect mailboxes. Data loss prevention (DLP) capabilities prevent users from mistakenly sending sensitive information to unauthorized people. Globally redundant servers, first-class disaster recovery capabilities, and a team of security experts monitoring Exchange Online around the clock safeguard your data. With a guaranteed 99.9% uptime and financially backed service level agreement, you can count on your email always being up and running with no need for on premises maintenance.

Maintain control over your environment while gaining the advantage of hosting your email on Microsoft servers. You can manage powerful capabilities such as Data Loss Prevention (DLP), Outlook apps, and site mailboxes from the Exchange Administration Center. This streamlined and intuitive interface helps you to manage Exchange efficiently, delegate tasks, and focus on driving your business forward. You can also perform and script management tasks using Windows PowerShell.  

Run In-Place eDiscovery across Exchange, SharePoint, and Skype for Business data from a single interface through the eDiscovery Center. Tooltip with information about availability of running eDiscovery from the eDiscovery Center. 

With mobile device policies, you can create approved mobile device lists, enforce PIN lock, and remove confidential company data from lost phones. IT-level phone support is available to you 24 hours a day, 7 days a week.


Manage features like Data Loss Prevention, Office 365 groups and many more with the online-based Exchange Admin Center. Thanks to Exchange archiving, large inboxes and the integration of storage policies you stay in control of your storage needs and compliance requirements.

Exchange Online is licensed as a User Subscription License (USL). There are two Exchange Online Plans, Plan 1 and Plan 2. Plan 2 includes more advanced features than Plan 1 (for details, please see below).  

As part of an Office 365 plan, Exchange Online Plan 1 is included in Office 365 Business Essentials, Business Premium and Enterprise E1. Exchange Online Plan 2 is included in Office 365 Enterprise E3 and E5. Exchange Online Plan 1 and 2 are available through the following Volume Licensing Programs:  

  • Open License, Open Value, Open Value Subscription 

  • Microsoft Products and Services Agreement (MPSA) 

  • Enterprise Agreement (EA) and Enterprise Agreement Subscription (EAS) 

  • Enrollment for Education Solutions (EES).

Compare Exchange Online Plans


Plan 1

Plan 2

Office 365
Business Premium


Secure and reliable business-class email with a 50 GB mailbox per user.

All the features of Exchange Online Plan 1, plus unlimited storage and data loss protection. 

Secure and reliable business-class email with a 50 GB mailbox per user.

Large mailboxes  
Each user gets 50 GB of mailbox storage and can send messages up to 150 MB in size. 

(100 GB)

Outlook support  
Users can connect supported versions of Outlook to Exchange Online, so they can use the rich client application they already know. 

Web-based access  
For web-client access, Outlook on the web provides a premium browser-based experience. 

Outlook app  
Get more done on your phone and tablet with the Outlook app for iOS and Android


Every mailbox is protected with premier anti-malware and anti-spam protection via Exchange Online Protection.

In-Place Hold  
Use In-Place Hold to preserve deleted and edited mailbox items from users' primary mailboxes and In-Place Archives. 


Unlimited storage  
Unlimited storage in the user's In-Place Archive.


Data loss prevention (DLP)  
Built-in DLP policies based on regulatory standards such as PII and PCI.


Fully installed Office applications  
Word, Excel, PowerPoint, Outlook, Publisher, and OneNote on up to 5 PCs or Macs per user 


Check out our Office 365 site as well to see if a more comprehensive productivity solution might better fit your needs.


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