Advertisements
Advertisements

Category: Exchange 2016

Exchange 2016 CU13 introduced a few more fixes and is advisable to upgrade to it. The upgrades are generally seemless and we normally do them from command line, just easier than a GUI upgrade 🙂 Firstly, you need to ensure the following is done before hand: Reboot your system (a general rule of thumb before […]

Advertisements
Advertisements
Read more

Ever reboot your servers and when you login, all looks good on the surface but when you try and do stuff well it doesn’t actually work? In this scenario exactly that. Running coexistence with Exchange 2016 and 2019 and after a reboot, all seemed good. Exchange Management Shell launched fine but the Exchange Admin Center […]

Read more

Running the command Get-MailboxDatabaseCopyStatus * on an Exchange 2010 Server that has Exchange 2016 in the environment, returns all the database copies for every version but today Exchange 2010 gave a weird error: A server-side administrative operation has failed. Operation failed with message: Error 0xe0434f4d (Unknown error …. This is what you get in the […]

Read more

In Exchange, the above event seems to log from what we have picked up when working in the Exchange Management Shell, however we cannot find what is triggering it or what the fix is. We have not only seen it here but also on Exchange 2013 and 2019. A query was sent to Microsoft a […]

Read more

In Exchange 2010 when you running in coexistence with a newer version, you might encounter the following error logged in the event log constantly: This error is logged because the CAS server does not have its correct URL’s set, you can refer to the link below for guidance on how to update them. Once updated […]

Read more

In Exchange 2019 but in any version, you cannot mix Exchange versions so they are part of the same DAG. For example, you cannot add an Exchange 2013 server to a 2016 DAG. I though I would test Exchange 2019 to make sure we don’t have a bug like in Exchange 2016 but it seems […]

Read more

In my Exchange lab I have been experimenting with Cipher Suite lock down and closing holes in SSL. Here are a list of items that we went through: IIS Crypto check and configure. SSL Labs website check. SSL Certificate check and validations. Strict Transport Security – IIS Firstly, I downloaded IIS Crypto 2.0 from Nartac […]

Read more