Month: September 2017

Exchange updates

Harri Jaakkonen
Posted by Harri Jaakkonen Posted on 21/09/2017 0 Comments on Exchange updates
Posted in Exchange, Hybrid, Onpremise

Updates have been released for Exchange 2013 and 2016. https://blogs.technet.microsoft.com/exchange/2017/09/19/released-september-2017-quarterly-exchange-updates/ If You are using a Hybrid, You have to update these to be supported.

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Lync/SfB Server: Event 41026, LS Data MCU after May 2017 .NET Framework update

Harri Jaakkonen
Posted by Harri Jaakkonen Posted on 14/09/2017 0 Comments on Lync/SfB Server: Event 41026, LS Data MCU after May 2017 .NET Framework update
Posted in Certificates, Lync, Onpremise, Powershell, Skype for Business, Windows Updates

Hi, Today a customer call me and said that they cannot connect to meeting. In the Blog below is the fix. https://blogs.technet.microsoft.com/uclobby/2017/05/24/lyncsfb-server-event-41026-ls-data-mcu-after-may-2017-net-framework-update/ And script that does this for You. https://gallery.technet.microsoft.com/LyncSfB-Server-Disable-EKU-dab6cb88

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Recipient deferred because there is no Mdb.

Harri Jaakkonen
Posted by Harri Jaakkonen Posted on 14/09/2017 0 Comments on Recipient deferred because there is no Mdb.
Posted in Exchange, Office 365, Powershell

So You see this error in NDR when the message bounces back. In my case I had a normal AD User with mail-attribute populated. Exchange figured out that this user has a mailbox inside the organization. It wasn’t. The user…

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