Use Microsoft Graph API to reach on-premises, cloud users of hybrid Exchange 2016

As you aware, Office 365 and Exchange Online provide a new way to work with email, calendars, and contacts. The Mail, Calendar, and Contact REST APIs provide a powerful, easy-to-use way to access and manipulate Exchange data. In this video, you will see Venkat, Principal Program Manager lead will walk you through how to use…

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Diagnostics: How to enable debug tracing for System.Net.Mail API?

You can enable the following trace switches in your application config file, so that you can enable tracing for The System.Net.Mail library/API. This will log the contents of the SMTP session to a file. To send traces to a log file, add the following node to the <system.diagnostics> node of the appropriate configuration file (application…

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Office 365 Developers - Catch up on Outlook APIs in Microsoft Graph

  In Build 2017, i attended good number of sessions virutally, including this one by Venkat Ayyadevara, Program Manager, Outlook EcoSystem about Outlook API’s in Microsoft Graph. In this, you can learn about recent updates in Microsoft Graph for accessing Outlook mail, calendar, contacts and more for millions of commercial and consumer users. You can…


Microsoft Build 2017 Developer Conference, Seattle on May 10-12, 2017

The Microsoft Build 2017 developer conference takes place in Seattle on May 10–12, but no matter where you are, join us for live-streamed keynotes, announcements, technical sessions, and more as it happens. This conference will address vital topics for Windows developers. You can learn more about: •Improvements that help you immediately engage your users with beautiful…


MAPI Developer: Download latest MFCMAPI from the Github

As you aware that MFCMAPI provides access to MAPI stores to facilitate investigation of Exchange and Outlook issues and to provide developers with a sample for MAPI development. If you look to download the latest MFCMAPI (x86/x64) then you can get it from the Github @ https://github.com/stephenegriffin/mfcmapi Hope this helps.


Debug: WebAPI/Web Service fails to hit Load Balancer when called from Outlook add-in

Recently i worked with this app developer, who created a custom Outlook add-in through which they try to make use of custom ASP.Net Web Service/Web API using REST call. This URL works fine from the browser on a machine running the Outlook with the Add-in installed. But it fails with the below error from within…


Debug: Collecting HTTP/HTTPS traffic using Fiddler Web Debugger tool

As you aware that the Fiddler tool helps you debug web applications by capturing network traffic between the Internet and test computers. The tool enables you to inspect incoming and outgoing data to monitor and modify requests and responses before the browser receives them. So this post provides the steps for capturing HTTP/HTTPS traffic with…


Cloud Developer: Office 365 REST API returns 401 access denied with an error code of “invalid_token”

In recent times i worked with this cloud developer (Azure AD, Office 365 REST API) where they created a custom application. It uses (Calendar, Contact, Mail APIs) to pull items from the specified user mailbox. Intermittently they see “401 Access Denied” followed by error code “invalid_token” from the API. During the investigation, we noticed that…

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Exchange TAP: Microsoft Graph Preview for Exchange 2016 customers

– Are you the app developer of Microsoft Graph API? – Want to develop and validate an Exchange hybrid solution? – Do you have Exchange 2016 CU3 or later installed? If “yes”, then this space is for you. We are interested in working with Exchange 2016 customers or partners to help us validate Exchange hybrid…


Office Developer: Outlook 2010 add-in template not available in Visual Studio 2013?

Once you installed Visual Studio 2013 and tried building a custom Outlook add-in you will the see the Outlook 2013 add-in template available.   Recently one of my customer asked, what if he wants to build Outlook 2010 add-in and he failed to see the respective template for it. I suggested the following steps to…


Office Developer: Request from Office for Apps going to ajax.aspnetcdn.com getting a 502 error?

In recent times, i was working with this customer where they created an Outlook add-in (Office for Apps/Office.js). They noticed that a request from Office for Apps going to ajax.aspnetcdn.com getting HTTP 502 error. During debugging (network sniffs) we noticed that issue happens that the URLs were blocked by their AV, Proxy Server settings. On…


Office Developer: Which build of Microsoft Office do I need in order to get that cool API or requirement set?

        This is one of the regular query raised by various developer customers, “Which build of Office do I need in order to get that cool API or requirement set?”.  Ok, here is the published guidance that addresses that question. Check out these topics: Dialog – https://dev.office.com/reference/add-ins/requirement-sets/dialog-api-requirement-sets Excel – https://dev.office.com/reference/add-ins/requirement-sets/excel-api-requirement-sets OneNote -…


Video: Every Girl Can Code with Microsoft Small Basic

Leveraging Microsoft Small Basic to teach future generations of women. Here is a video which tells how Microsoft Small Basic helps them to achieve more So please leverage Microsoft Small Basic to teach future generations of women, young girls. They can learn via Visual Programming, create programs, Games and improve their knowledge. Learn the programming…

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Training: Advanced Office Add-in Development with Outlook

All of us spend a significant amount of time in email. Want to see how to build custom mail add-ins that can deliver a more productive experience in Outlook? Check out this session, and get ready to make mail better through add-ins. In this session “Advanced Office Add-in Development with Outlook”, you can learn how…