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Exploring OAuth for ActiveSync and POP/IMAP in Exchange

How to Use OAuth for ActiveSync and POP/IMAP in Exchange Online
Overview
The Exchange Online product provides a secure and reliable messaging infrastructure for organizations of all sizes. One of the key features of Exchange Online is its support for authentication protocols such as OAuth, which can be used to protect access to user data. In this article, we will discuss how to use OAuth for ActiveSync and POP/IMAP in Exchange Online.What is OAuth?
OAuth is an open standard for authorization that provides a way to authenticate users and authorize applications to access user data. OAuth is widely used to provide secure access to user data, such as email, contacts, calendars, and documents.How Does OAuth Work?
OAuth works by allowing an application to request access to a user’s data from a server. The application then sends an authorization code to the server, which is used to generate an access token. The access token is then sent back to the application, which can then use it to access the user’s data.Using OAuth for Exchange Online
Exchange Online can be configured to use OAuth for authentication for both ActiveSync and POP/IMAP. To set up OAuth for ActiveSync, you must first configure the Exchange Online tenant to support OAuth. This can be done from the Exchange Admin Center.Configuring OAuth for ActiveSync
To configure OAuth for ActiveSync: * In the Exchange Admin Center, go to the ‘Organization’ tab and select ‘Organization Settings’.
* Under ‘Authentication and access’, select ‘OAuth’.
* In the ‘OAuth Settings’ section, select the ‘Enable OAuth authentication’ checkbox.
* In the ‘OAuth Client Settings’ section, enter the client ID and secret.
* Click ‘Save’.

Configuring OAuth for POP/IMAP
To configure OAuth for POP/IMAP: * In the Exchange Admin Center, go to the ‘Organization’ tab and select ‘Organization Settings’.
* Under ‘Authentication and access’, select ‘OAuth’.
* In the ‘OAuth Settings’ section, select the ‘Enable OAuth authentication for POP/IMAP’ checkbox.
* In the ‘OAuth Client Settings’ section, enter the client ID and secret.
* Click ‘Save’.

Conclusion
OAuth is a great way to provide secure access to user data, such as email, contacts, calendars, and documents, in Exchange Online. By configuring OAuth for ActiveSync and POP/IMAP, you can ensure that user data is kept secure.
References:
Notes from the field: Using OAuth for ActiveSync and POP/IMAP in Exchange Online

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