Azure Developer: Submit your Feature requests for Microsoft Graph API User Voice

Have you submitted any of the feature requests for Microsoft Graph API earlier? If yes, then please note that we got a new home for it  microsoftgraph.uservoice.com. Until now, the feature requests were part of the larger Office Dev User Voice. With this move to Microsoft Graph’s own instance of User Voice, each API service…


Deep dive # 2: How to configure Exchange on-premise Server hybrid integration with Office 365/Azure Infrastructure and test REST API calls?

So this post is dedicated for Exchange/Office 365/Azure administrators, as they came back after checking the deep dive # 1 blog with few queries. /api virtual Directory: CU3 introduces a new virtual directory to support the REST API, the /api virtual directory. So the API virtual directory is available in Exchange 2016 CU3 or newer…


Deep dive # 1: How to configure Exchange on-premise Server hybrid integration with Office 365/Azure Infrastructure and test REST API calls?

This is one of the regular discussion that comes across at my desk, how we can configure Hybrid Exchange on-premise server integration with Office 365/Exchange Online, so that users can make use of REST API. So I thought let me stitch all of them together which can be handy for both the Exchange administrators and…

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Exchange Server Quarterly Servicing updates, changes, zero day vulnerability fixes released

Yesterday we released Exchange Server quarterly servicing Cumulative Updates (for Exchange 2013/2016/2019) and Rollup Update (for Exchange 2010) for all supported versions of Exchange Server. Few highlights were, These updates have the fixes to mitigate the zero day and related vulnerabilities. An architectural change to EWS Push notification authentication – this change addresses the EWS…

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[Upcoming changes] Exchange Web Services API for Office 365

Exchange Web Services (EWS) was launched as a part of Microsoft Exchange 2007 as a SOAP based API that allows access to Exchange and Exchange Online data. Starting July 3, 2018, Exchange Web Services (EWS) will no longer receive feature updates. While the service will continue to receive security updates and certain non-security updates, product…


Graph Developer: Microsoft Graph API fails with error RESTAPINotEnabledForComponentSharedMailbox

One of my customer tried accessing the Graph/REST API call using Microsoft Graph API in their mailbox and they get error “RESTAPINotEnabledForComponentSharedMailbox”. It worked for their couple of other mailboxes, but failed for this given mailbox. Their error stack (detailed one) looked like the following: {     “error”:     {         “code”: “RESTAPINotEnabledForComponentSharedMailbox”,         “message”:…

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Programmatically created email with attachment shows fields garbled

In recent times I was working with this developer customer. They created a custom application using Outlook Object Model (OOM) API – their app tries to create a new message programmatically with attachments. They notice the newly created items fields (such as the CC, BCC and TO) overlaps or garbled. Based on my tests with…


Debug: Syncing custom EWS app to an Exchange Server 2010 mailbox receive ErrorServerBusy

When you try to synchronize an Exchange Web Service (EWS)-based application to a mailbox in a Microsoft Exchange Server 2010 environment, you receive an ErrorServerBusy response code and an error message that resembles the following: The server cannot service this request right now. Try again later. This error occurs when the server is busy. Exchange…


Microsoft Graph REST API Developer – Getting list of locales, languages supported for the user mailbox

Using Microsoft Graph REST API, you can get the list of locales and languages that are supported for the user, as configured on the user’s mailbox server. You need to use OutlookUser resource type, which represents the Outlook services available to a given user. Request:https://graph.microsoft.com/beta/me/outlook/supportedLanguages RequestHeader: Authorization, Bearer/Token is required Response:If successful, this method returns…


Debug EWS subscription error – You have exceeded the available subscriptions for your account

Recently i was investigating an issue reported by an app developer. They created a custom EWS (Exchange Web Services) application which tries to open streaming subscription to Exchange Server 2013 using EWS. It worked fine for a while and later they noticed the following error: You have exceeded the available subscriptions for your account. Remove…

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Download Exchange Server 2016 CU 7, Exchange Server 2013 CU 18

On September 19, 2017 we released the Cumulative update 7 for Microsoft Exchange Server 2016 and Cumulative update 18 for Microsoft Exchange Server 2013 as well. Exchange Server 2016 CU 7:Several nonsecurity issues are fixed in this cumulative update or a later cumulative update for Exchange Server 2016.  So the Exchange Server 2016 CU 7…

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