Exchange 2013: Shell does not start, no connection possible

Here is another interesting Exchange 2013 problem that occurred after someone had "cleaned up". Error situation Outlook no longer connects, access to Exchange Shell and Exchange Administrative Center was also no longer possible. The error occurred after the Exchange Server had a completely wrong date due to a faulty configuration. Even after the problem ... Read more

Exchange 2013/2016: Event 106, error when updating a performance indicator

I hate errors in the event log, and event 106 is particularly stubborn. It occurs from time to time. Here is an example: Source: MSExchange Common Event ID: 106 Error updating a performance indicator. The indicator name is 'Percentage of MSAUserNetID Cache hits for last minute', the category name is 'MSExchange Global Locator Processes'. Optional code: 3 Exception: ... Read more

Exchange Migration: Caution with public folders (data loss)

Anyone who is currently in the migration phase from Exchange Server to Exchange Server 2013/2016 and needs to migrate public folders should read the following article: https://support.microsoft.com/en-us/kb/3161916 This article describes a problem that can result in data loss. The problem occurs when there are several public folder databases on the source servers and not all public folders are ... Read more

Exchange Autodiscover and Strato Webhosting

If you use a web hosting package from Strato and also operate your own Exchange server, you should pay attention to Autodiscover. In the default setting, autodiscover is activated at Strato, but as an SRV entry and reference to Strato: The activated setting at Strato then refers to the address autoconfigure.strato.de: However, if you operate your own Exchange server and use Strato as a smart host, ... Read more

New Exchange Server updates available

New updates for Exchange Server 2007, 2010, 2013 and also for Exchange Server 2016 have been released today: Exchange 2016 CU 1 Exchange 2013 CU 12 Exchange 2010 SP3 UR 13 Exchange 2007 SP3 UR 19 New UM language packs are available here: UM language packs for Exchange 2016 CU 1 UM language packs for Exchange 2013 CU 12 A list of ... Read more

Exchange Server: Prevent mail spoofing

Mail spoofing is often used to persuade users to open dangerous attachments in emails. The aim is to make it look as if the email is coming from a colleague or a device such as a scanner or Fax2Mail. Mail spoofing is used to falsify the sender's address so that it looks to the user as if the email is coming from an internal ... Read more

Exchange Reporter 3.1 is available for download

I have just uploaded version 3.1 of the Exchange Reporter. This time I mainly fixed bugs that crept in despite many tests in different environments. I have made the following changes: Bugfixes O365report.ps1: The report only returned the first 1000 results, thanks to Kaari fixed Mbxreport.ps1: Bug in the listing of limits fixed, if more ... Read more

Exchange 2013/2016: Recreate index

If the search in Outlook Web Access, or Outlook on the Web, no longer works, a broken index is usually to blame. However, the index can be recreated quite easily and in most cases this solves the problem. You can find out whether the index should be recreated using the Exchange Management Shell: Get-MailboxDatabaseCopyStatus ... Read more

Do not install .NET Framework 4.6.1 on Exchange servers

A note has been published on the Exchange Team Blog stating that .NET Framework 4.6.1 should not be installed on Exchange servers at the moment: http://blogs.technet.com/b/exchange/archive/2016/02/10/on-net-framework-4-6-1-and-exchange-compatibility.aspx In conjunction with .NET Framework 4.6.1, the databases may also be taken offline. The only remedy at the moment is to uninstall .NET Framework 4.6.1: https://support.microsoft.com/en-us/kb/3095369 Currently ... Read more

Find user accounts in nested groups

Does anyone else have this problem, or is it just me? Every now and then I get stuck: Somewhere there is a distribution group which in turn contains other distribution groups as members, as can be seen here in the example: In practice, there are usually distribution groups such as "Finance", and then "Finance - ... Read more