An O365 API Authentication Documentation Guide – The first step in building your Microsoft Graph application No ratings yet.

When I first came across the concept of using O365 REST-based APIs such as the Graph API and the Outlook REST API, I was overwhelmed with the immense number of possibilities that could be devised from such integration. However, what…

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Adding Shared Folders support to Office Add-ins for Outlook (Outlook Web Add-ins) 4.67/5 (3)

Background information Ever since the modern add-ins were introduced in Outlook, one of the most requested features has been the ability to activate an add-in in a shared mailbox. Although documented as preview mode, many people have been struggling to…

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GetFolder sometimes returns an incorrect TotalCount when issued against a Public Folder mailbox hosted in Office 365 No ratings yet.

Symptoms When issuing an Exchange Web Services GetFolder request to a public folder mailbox hosted in Office 365 Exchange Online, the TotalCount returned in the response may incorrectly show a value of 0.  More Information Office 365 Exchange Online engineering…

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ROPC (Resource Owner Password Credentials Grant) Flow No ratings yet.

Overview This blog post is intended for the Exchange Administrators that are using Powershell scripts to consume the Outlook REST API v1.0 endpoint //outlook.office365.com/api/v1.0 authenticating with user credentials. With the REST API v1.0 with support to Basic Authentication deprecation, a…

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How to decrypt and un-sign a message programmatically using the OOM No ratings yet.

Overview This blog post demonstrates how to decrypt and un-sign a message programmatically using the Outlook Object Model.   Encrypt email messages When you need to protect the privacy of an email message, encrypt it. Encrypting an email message in…

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Authenticating against Exchange Web Services using certificate based OAuth2 tokens No ratings yet.

Overview This post contains step by step information on configuring your environment and authenticating against Exchange Web Services using certificate based OAuth2 tokens. The information in this blog post is only valid for connecting to Exchange Online mailboxes. Requirements In…

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