Calculator Guide I am extremely pleased to announce that the all new Exchange Client Bandwidth Calculator Beta is available for download!! Over the past 12 months we have been working on a new calculator to help with Exchange client network bandwidth approximation. This new calculator is based on all new prediction data and is designed to work with both Exchange on-premises and Office 365 deployments! (Yes, we know it’s long overdue!) What does it do? The brief was concise and...

Introduction In the previous blog entry, I explained how to safely recover accidentally deleted public folders from backup. I briefly mentioned some important public folder concepts in that article, and in this, the second part, I’m going to describe some of the inner workings of public folders themselves.  Each organization maintains a list of all public folders in the environment, as well as the locations of all replicas .  This list is called the hierarchy , and it...

This article explains how mobile devices connect to Exchange Online (Office 365) service and how the connectivity may be impacted if the device does not support certain Exchange ActiveSync (EAS) protocol requirements. Exchange ActiveSync protocol versions Most mobile devices that connect to Exchange do so using the Exchange ActiveSync protocol. Each successive version of the protocol offers new capabilities. (The Exchange ActiveSync article maintained by the Exchange community...

Overview This two-part blog series will outline some of the recovery options available to administrators in the event that one or more public folders are accidentally deleted from the environment. The first part will explain the options, while the second part will outline the architectural aspects of public folders that drive the options. Introduction In older versions of Exchange, mailbox and mailbox database recovery was a long, complicated process involving backups, recovery...

I’m very happy to be able to announce we have just made available for download a guide to help those of you intending to migrate from Exchange in /Hosting mode to Exchange 2010 SP2 installed without use of the /hosting switch. Like the previous HMC to Exchange 2010 SP2 guidance , it contains a white paper and some PowerShell scripts. The white paper describes the migration process, and the scripts provide a starting point for your own migration toolkit. Of course the exact migration...

ActiveSyncReport script Download The Exchange support team relatively frequently receives cases where mobile devices using Exchange ActiveSync (EAS) protocol send too many requests to Exchange server resulting in a situation where server runs out of resources, effectively causing a ‘denial of service’ (DOS) attack. The worst outcome of such a situation is that the server also becomes unavailable to other users who may not be using EAS protocol to connect...

PST Capture Download Documentation Ask and ye shall receive, mateys! As we announced in July , we are always looking for new ways to make your work easier - especially when your work involves ending PST proliferation. Today, we are happy to announce that PST Capture is now available as a free download. PST Capture helps you search your network to discover and then import .pst files across your environment - all from a straightforward admin-driven tool. PST Capture will help reduce...

Earlier today the Exchange CXP team released Update Rollup 6 for Exchange Server 2007 SP3 to the Download Center. Note: The post title erroneously referred to Update Rollup 3. It has been updated to reflect the correct rollup number. This update contains a number of customer-reported and internally found issues since the release of RU5. See KB 2608656 : Description of Update Rollup 6 for Exchange Server 2007 Service Pack 3' for more details. We would like to specifically call...

The key takeaway from my last post on this topic was that the Resource Booking Assistant never allows double booking of a resource room calendar as a result of a recurring meeting request (please see Automatic Processing of Recurring Meeting Requests with Conflicting Instances ). Since there are times that an administrator may want to allow double-booking, we offered two workarounds that I’d like to address in a bit more depth. I'd also like to offer a third one that wasn’t mentioned...

Some of sharper readers of our documentation talking about schema changes that Exchange makes (see Exchange Server Active Directory Schema Changes Reference, November 2011 ) have noticed that in Exchange 2010 SP2, we have added several things that sound very related to what’s traditionally known as “custom attributes” in Exchange. Specifically: For object class ms-Exch-Custom-Attributes we added: ms-Exch-Extension-Attribute-16 to 45 ms-exch-extension-custom-attribute-1 to 5 There...