Event ID 1008: "Maximum Request Length Exceeded"

I've recently run into this issue a few times with Exchange 2010 customers.  This issue tends to have more of an effect on iOS devices, due to the nature of how Apple implements the ActiveSync protocol with its devices. This issue manifests itself in a number of ways.  However the most common is likely that an iOS device…

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"Sorry! Access Denied" error when trying to configure/customize Voice settings via ECP

I ran into an issue recently where a customer had rolled out Unified Messaging features to their users.  Everything was working fine except for the fact that several users would receive the following error when trying to configure Voice settings using ECP:   Even though this was not the most insightful error, it did point…

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Junk E-mail Validation Error

I recently worked on a case where we could not make changes to the Junk e-mail configuration settings for several users… whether we tried to make the changes from OWA or from Exchange Management Shell. One of the users we were trying to modify was not receiving emails from an automated application in her inbox…

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Unable to clone an Edge Transport server configuration

I just ran into an interesting issue the other day where we tried to clone configuration from one Edge Transport server to a new server and wanted to share my experience. Typically this is a relatively straightforward process, and the following link details the Import & Export scripts you would run to perform this process:…

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Various Exchange Releases, including Exchange 2010 SP3

This week the following updates are now available: Exchange 2010 SP3 (KB2808208)          http://www.microsoft.com/en-us/download/details.aspx?id=36768 Exchange 2010 SP2 RU6 (KB2746164)           http://www.microsoft.com/en-us/download/details.aspx?id=36716 Exchange 2007 SP3 RU10 (KB2788321)            http://www.microsoft.com/en-us/download/details.aspx?id=36708   Of course Exchange 2010 SP3 is a major update.  It not only addresses many known issues, but it is critical to Exchange 2010-2013 coexistence as well.   …

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iOS 6.1 issue with Exchange 2010 EAS Calendar Syncing

As most of you are probably aware by now, Microsoft & Apple are actively investigating the latest reported issue with iOS 6.1 users syncing with Exchange 2010 ActiveSync.  Microsoft has released a KB article that details what we know so far:  http://support.microsoft.com/kb/2814847 Apple has also recently released a support article for this issue: http://support.apple.com/kb/TS4532   *UPDATE: Apple has…

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Managing Exchange 2013 IIS Virtual Directories & Web Applications

If you've deployed Exchange 2013 in a lab or even in a production environment, you are no doubt getting familiar with the topology changes.  If you are not completely up to speed on the changes, Microsoft has essentially returned to the Front End & Back End topology that was last used back in Exchange 2003. …

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Disable Opportunistic TLS between an Edge Server and a hosted service, such as Exchange Online Protection

I’ve actually had this exact question come up  in a few different cases lately, so I figured a quick Blog post was in order.  There could be numerous reasons that you may need to disable the Opportunistic TLS on your Edge (or Internet) Send Connector, which is enabled by default in Exchange 2007 and above.  While I won’t go…

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Configuring Kerberos Authentication in Exchange 2010

There are many benefits to enabling Kerberos Authentication for your CAS Array in Exchange 2010 (SP1 and above).  One of the primary benefits is to alleviate the NTLM authentication issues in Exchange 2010 that I blogged about in my previous post.  Kerberos authentication provides a SIGNIFICANT reduction in authentication traffic versus NTLM, and helps prevent those authentication…

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The Curious Case of MaxConcurrentAPI

One of the issues we seem to encounter more often than not with Exchange 2010 is NTLM authentication issues.  Due to the architectural changes in Exchange 2010 (with all connectivity running through the Client Access servers), a high volume of NTLM traffic is increasingly likely to create an authentication bottleneck on the Client Access Servers…

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