Items specifically related to Exchange 2019
After taking an existing Exchange PowerShell script, and running on a newer version of Exchange, the output was not as expected. This is a pretty simple script that just iterates through all of the Exchange virtual directories and writes the output to the screen. Yes it uses Write-Host and some consider that to be evil. Others say "Friends do not let Friends use Write-Host". Oh well. This is… Read the rest “Ghost In The (Power)Shell”
The issue of "Why is the Exchange Security Update not installed?" has popped up frequently over the last few months due to the number of security releases for on-premises Exchange.
Due to Hafnium, security teams have increased the monitoring of Exchange to make sure that it is fully patched. In some of these cases, the Exchange and server admins think that they are all good as they run Windows Upd… Read the rest “Why Is The Exchange Security Update Not Installed?”
Your Exchange certificate is about to expire, so you initiate a standard process to renew it. It's only a 5 minute job as that's how long it took last time, right?
Well, no. All is fine until you try to renew the existing certificate. The easiest way to initiate the renewal is by using the Renew option in the Exchange Admin Center.
The current certificate is the one selected in the below screensho… Read the rest “Unable To Renew Exchange Certificate – Friendly Name Is Too Long”
Exchange server 2007 onwards will generate a self signed certificate as part of the installation process and bind that to multiple services. Those certificates have a 5 year validity, and the process to generate a replacement is pretty straight forward using New-ExchangeCertificate cmdlet.
One spin on this, was that some customers would do a pipe Get-ExchangeCertificate to New-ExchangeCertificate … Read the rest “Generating New Exchange Self Signed Certificate Using PowerShell’s Pipeline”
With the release of this month's Exchange updates, there are changes to not only the installation prerequisites but also the installation parameters.
These changes break down into two main areas. What you must ensure is installed prior to installing this or a subsequent CU, and secondly that the command line options have been updated along with the corresponding GUI.
To summarise:
Exchange 2019 CU11 has been released to the Microsoft Volume Licensing Center and the public Microsoft Download site! Exchange 2019 has a different servicing strategy than Exchange 2007/2010 and utilises Cumulative Updates (CUs) rather than the Rollup Updates (RU/UR) which were used previously. CUs are a complete installation of Exchange 2019 and can be used to install a fresh server or to upd… Read the rest “Exchange 2019 CU11 Released”
This is a topic that still comes up when doing email investigations. After there has been an issue, we want to perform analysis to determine what may have happened any potentially why certain security controls did not act the way we expected.
With email one example would be around the audit information collected when an Exchange Online transport rule acts upon a message.
It is common to see that ad… Read the rest “Exchange Online Transport Rule Audit”
The Exchange team just posted that the September 2021 updates are going to be slightly delayed. The priority will always be to ship quality updates rather than force it out to meet a specific day.
You can look at the announcement, and Nino's additional comments here:
Delay of September 2021 Cumulative Update for Exchange Server - Microsoft Tech Community
This means that we have a little bit more tim… Read the rest “Is Exchange Fully Updated? If Not, Go Update Now”
Imagine that you have spent weeks planning for your upgrade to Exchange 2019. There are no unsupported down-level versions of Exchange, only Exchange 2016 is present. Those pesky public folders were also taken out behind the farmer's shed never to return. That only taken 15 or so years, but hey life is a journey...
Imagine your surprise when you go to perform step #1 which is extending the… Read the rest “Unable to Prepare Schema For Exchange Server 2019–Forest Functional Level”
Exchange 2019 CU10 has been released to the Microsoft Volume Licensing Center and the public Microsoft Download site! Exchange 2019 has a different servicing strategy than Exchange 2007/2010 and utilises Cumulative Updates (CUs) rather than the Rollup Updates (RU/UR) which were used previously. CUs are a complete installation of Exchange 2019 and can be used to install a fresh server or to upd… Read the rest “Exchange 2019 CU10 Released”