Microsoft Exchange and Active Directory Blog
In part 1 and part 2 of this article series it became clear that the choice of file system can have an impact on performance. In the last test, I was able to improve performance with a little fine-tuning: The fine-tuning at this point related to the ESX configuration (HBA settings etc.), the ReFS and NTFS volumes have ... Read more
In the first part of this series of articles, I had already started to analyze the difference between ReFS and NTFS in connection with Exchange 2016. However, the test environment was not yet optimized, but now it looks a little different. As a reminder: a VM on vSphere 5.5, Windows Server 2012 R2, 8 vCPUs (Xeon E5-2690v3), 32 GB ... Read more
Jetstress is excellent for testing the storage for Exchange. I used it to see how NTFS and ReFS perform in terms of speed. There is no official version of Jetstress for Exchange 2016 yet, but the Jetstress version for Exchange 2013 also works with Exchange 2016. You can download Jetstress here. Read more
The preview was first released on July 22, but today the final version is already available for download: http://www.microsoft.com/en-us/download/details.aspx?id=49161 This means that Exchange 2016 and the new standard client Outlook 2016 are now available in the final version. Exchange 2016 is 1.68 GB in size, and is therefore a little slimmer than the preview with a good 1.69 ... Read more
At the weekend there is a PowerShell script that can be used to test a domain for mail problems: The script returns the MX, PTR, SPF and DMARC entries of a domain and checks whether one of the IPs is on a blacklist. It also checks whether port 25 (SMTP) is accessible. The script is simply executed with ... Read more
I have decided to publish a new major release for the Exchange Reporter, which requires a few fundamental changes to the structure. In the future, Exchange Reporter will be available in several languages, or the language will be selectable. Exchange Reporter 3.0 should not only be multi-language capable, but also offer even more ... Read more
The configuration of an Exchange 2016 DAG is almost identical to the configuration of a DAG with Exchange 2013. In principle, it is even a little easier, because the question of whether the roles should be separated or whether all roles can be installed on one server no longer arises with Exchange 2016. There is now only the ... Read more
In this article, I would like to focus less on the error analysis of mail problems and more on tools that provide a quick overview to determine the problem. First of all, there is the Microsoft Remote Connectivity Analyzer: https://testconnectivity.microsoft.com/ This service offered by Microsoft can be used to test ActiveSync, EWS, Autodiscover and Outlook Anywhere as well as SMTP. The website helps ... Read more
After renewing the certificate for Exchange Server 2013 and Exchange Server 2016 (think also for Exchange 2010), the following event occurs after restarting the IIS server: [OWA] Failed to load SSL certificate The login to OWA or ECP is then no longer possible, it appears after entering the user name and password ... Read more
Resource mailboxes are very popular to enable the booking of meeting rooms or company cars. With Exchange 2013 and Exchange 2016 it has become even easier to manage the rooms. Here is a small howto that works with Exchange 2013 and Exchange 2016 (For Exchange 2010 you can find the howto here) First of all, via ECP ... Read more
