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Exchange Online

Exchange Online

Last modified: April 13, 2011

Applies to: Exchange Online | Office 365

Microsoft Exchange Online is a hosted enterprise messaging and calendaring solution that is based on Microsoft Exchange Server. Exchange Online provides many of the same programmability interfaces that the on-premises Microsoft Exchange solution provides.

Explore these links to find out more about developing solutions for Exchange Online.


We publish new content continuously. To view the latest content, explore the topics included in the following resources.


MSDN Developer Centers

Visit the Exchange Online Developer Center and the Exchange Server Developer Center to access code samples, community sites, documentation, and more.


Getting Started

Use this guide to determine which Exchange 2010 development technology is right for you.


Downloads and Code

Find the latest Microsoft Exchange code sample downloads.



Check out the latest posts from the Exchange developer community.


Provide Feedback

Provide feedback about the documentation for Microsoft Exchange.

  • Classic view. Use the Click to Rate and Give Feedback link at the top of the topic in the MSDN library. This delivers you feedback directly to the documentation team.

  • Lightweight view. Click the feedback icon. This delivers your feedback directly to the documentation team.

  • Scriptfree view. Click the Feedback link at the top of the topic in the MSDN library. This enables you to provide feedback about the scriptfree view to a forum.