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Processing Large and Embedded Groups in PowerShell

I'm working with a client that has - over an extended period of time - accumulated thousands of security groups, most of which are mail enabled for use by both Exchange and for setting rights on various objects. Becasue they use embedded groups (that...

Determining the Exchange Version - without using Get-ExchangeServer

If you write lots of Exchange scripts (as I do), and have several different versions of Exchange on which you need to run those scripts (as I do); you soon see the need for being able to determine what version of Exchange a particular server is running...

Finding Duplicate IP Addresses and Duplicate Names in a DNS Zone

One of the traditional issues associated with cleaning up an Active Directory Directory Services (AD DS) domain in DNS is to ensure that duplicate names in DNS are removed (this is typically an issue caused by not having DNS Scavenging enabled, or by...

Enumerating networks and building routes with PowerShell

I've been working with a company that is in the process of setting up a remote datacenter for disaster recovery. They brought me in to help design their Exchange cross-site resilience, and I've been helping them with a few other things too. Primary...

Enumerating IP Addresses on Network Adapters using PowerShell

Regardless of whether a server is for Exchange, for SQL, or for any other use; a key component of the server's configuration is the set of IP addresses assigned to it. Many organizations apply all addresses (even server addresses) using DHCP. For...

Installing Exchange 2010 Service Pack 2

Exchange 2010 Service Pack 2 was released-to-web on Monday (December 5, 2011). Containing literally hundreds of code corrections since service pack 1, plus several significant new features, service pack 2 is an important new release. I will not attempt...
Posted by michael | with no comments

Generating a report on Distribution Groups and their Membership, v2

In August of 2010, I posted Generating a report on Distribution Groups and their Membership . For most people, that script worked just fine. However, it had some issues: Large groups would cause PowerShell to generate an error about concurrent pipelines...
Posted by michael | with no comments

Black Hole Distribution Groups

I had the question posed to me today: if I have a mail-enabled group (either a security group or a distribution group) that has no members, and it receives an email, why don't I get an NDR? Well - works as intended! Let's have a thought experiment...
Posted by michael | with no comments
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Exchange 2003 FE Servers vs. Server 2008 Active Directory

I spent eight hours over the last two days figuring out an interesting - but weird - problem. Once I figured out the problem, correcting it was a simple matter. I'll just give you the problem description and then the solution. Hopefully it will save...

More on Active Directory Privileged Groups and Exchange Server

In October of 2008, I wrote the article adminCount, adminSDHolder, SDProp and you! This article discussed why membership in privileged groups could cause permissions challenges. You may want to refer to it before proceeding. With Exchange Server 2010...
Posted by michael | with no comments

Exchange 2010 Service Pack 1 and Required Hotfixes

As you are probably aware, Exchange 2010 service pack 1 was released last week, on the Internet (a so-called RTW [release to web] by Microsoft) at the Microsoft Exchange Team Blog . The release posting was The Future of Exchange Starts Here: Exchange...
Posted by michael | with no comments

Generating a report on Distribution Groups and their Membership

A common request is to get a list of all distribution groups and the members contained in that distribution group. The question came up on a mailing list I frequent today, and my initial response was a PowerShell "one-liner" (actually five lines...
Posted by michael | with no comments

Exchange Email Address Template Objects in PowerShell

Exchange has a very rich set of objects which are used and created by the various Exchange cmdlets. Unfortunately, these objects (excepting those used by Exchange Web Services) are poorly documented - and the documentation which is available is often...
Posted by michael | with no comments

Antivirus Exclusions and Windows

In December of 2007, I made two posts: File Level Antivirus for Exchange and Information Store Antivirus for Exchange . Since that time, there is no question that with Exchange 2007 and Exchange 2010 (and the ongoing advancement of various Internet-based...

Exchange 2010 Gotcha - #5

You may - or may not - need to register Filter Packs after you install them. As a prerequsite for installing Exchange 2010, you must install the Office 2007 Filter Packs . As noted in a recent blog post of mine, Office 2010 Filter Pack for Exchange 2007...
Posted by michael | with no comments
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