Office.js web add-in throws HTTP 401 Unauthorized

One of my dev customer, created Outlook Web add-in (using Office.js/JavaScript) and tried calling EWS call (mailbox.makeEWSRequestAsync method). It throws HTTP error 401 for mailbox.makeEWSRequsetAsync() method. They noticed the error or behaviour when they tested with Outlook on the Web and Outlook Web Access for devices. The API call throws, the following HTTP error: “The…


Supportability matrix for Microsoft Exchange Server 2007, 2010 and 2013 versions

The Exchange Server Supportability Matrix provides a central source for Microsoft Exchange administrators to easily locate information about the level of support available for any configuration or required component for supported versions of Microsoft Exchange. You can refer the supportability matrix here – all of them documented in a single place. It talks about Release…


Video : New user experiences in Office 365 on the Web

Nick updated in a recent blog post that now we can see set of new user experiences in Office 365 on the web that provide quick access to notifications, help and what’s new feature introductions, contextual and immersive settings and the integration of Skype for Business conversations – all within the context of your work….


Download: Exchange Server 2010 SP2

Now you can download Exchange Server 2010 SP2 (remember Bharat Suneja’s blogpost). Microsoft Exchange Server 2010 SP2 helps you achieve new levels of reliability and performance by delivering features that help to simplify your administration, protect your communications, and delight your customers by meeting their demands for greater business mobility. It contains the new features and capabilities…


While try to log into an Exchange 2003 mailbox by using WebDAV program, you receive a 401 status code in IE

When the user tried to access a Microsoft Exchange Server 2003 mailbox by using a program that uses Web Distributed Authoring and Versioning (WebDAV), Internet Explorer throws 401 HTTP status code. During investigation we found that we may not be able to access the mailbox. Also we notice that the mailbox has never received an…


Where does autocomplete gets stored in OWA?

There is always a related question regarding autocomplete feature on OWA. In outlook the auto complete gets stored in *.NK2. Where does it store for OWA ? The Auto Complete cache is stored as part of the user’s profile on the Exchange Server.

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Exchange Server 2007 & OWA : Password change feature

If you work with Exchange Server 2007, this method is no longer required.  But, it can be used with Windows Server 2003 and Exchange Server 2007 configurations when the ability to change passwords after they have expired or when users are required to change their password at the first logon is needed.   When i…


How to show & recover the deleted subfolders using PFDAVAdmin tool?

Using PFDAVAdmin we need to use the "Show deleted subfolders" option which enumerates any deleted subfolders of the currently selected folder. Note that the deleted folders are preserved only if Deleted Item Retention has been configured on the public store. Any such folders appear in red. If you right-click a deleted folder, you have the…

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Monitoring event sink # 28 – Attachments Are Missing When You Use an Event Sink to Modify the Stream of Messages

One of my customer reported that they have a store event sink, which is used to modify the stream of incoming messages in Exchange Server environment (2003). But their attachments are missing when they open & view the message in Microsoft Outlook or in Microsoft Outlook Web Access (OWA); But contrarily when we view the…

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Monitoring event sink # 27 – After you register an event sink on a mailbox store, the Microsoft Exchange Information Store service does not start in Exchange Server 2003

One of my customer had migrated from Exchange server 2000 to Exchange Server 2003, where had an event sink registered on a mailbox store. But his Store.exe (Exchange Information Store service) stops responding for one of the following events:  • You restart the Microsoft Exchange Information Store service. • Store.exe automatically starts after a restart…

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Tutorial : Free/Busy data – Series # 1

Publishing Free/Busy data: Free/busy data is published information that contains a user’s personal availability data based on the user’s schedule. Microsoft Exchange Server uses the information extensively when users schedule meetings. Exchange Server 2003 stores free/busy information in a dedicated public folder that is named SCHEDULE+ FREE BUSY. This folder contains a separate subfolder for…

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Outlook Web Access and Exchange 2007, Exchange 2003, and Exchange 2000 Coexistence

Please find this article which explains how Microsoft Outlook Web Access works in Exchange organizations that include computers that are running one or more versions of Microsoft Exchange that were released earlier than Microsoft Exchange Server 2007. These earlier versions can include Microsoft Exchange Server 2003 and Microsoft Exchange 2000 Server. You can use this…

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