Exchange System Manager – Public Folders Error ID: 80090328

When clicking on Public Folders via Exchange System Manager you received the following error: ’The received certificate has expired.’ ‘ID no: 800903328′

This is purely because the assigned certificate has expired as the error suggests. There are two ways around this: renewing the certificat or some steps which is required adsiedit.

Open up IIS Manager by going to Start, Administrative Tools, Internet Information Services (IIS).
Expand ‘Default Web Site’, right click the Exadmin folder and go to Properties.

Click the Directory Security Tab and click Edit under the Secure Communications area.

Now untick both ‘Require 128-bit encryption’ & ‘Require secure channel (SSL)’ 
(Dont just untick Require secure channel)

Click ok until you’re back at the IIS Manager.

Now we get onto the adsiedit stuff. To start adsiedit.msc you’ll need to download the Windows Support tools for your Operating System.

Once you’ve downloaded and installed them, you can click on the Start Menu, go to Run and type in adsiedit.msc and click open.

Go to the following location:
CN=Configuration
CN=Services
CN=Microsoft Exchange
CN=YourDomainName
CN=Administrative Groups
CN=First Administrative Group
CN=Servers
CN=Protocols
CN=HTTP
CN=1
CN=Exadmin


Right Click on CN=Exadmin folder and choose Properties.

In the properties, scroll down and find the attribute msExchSecureBindings and click edit. You should see a Value of :443:  in there, highlight it and click Remove

Now just close Exchange System Manager and reopen it and you should be able to open the Public Folders again without error.

 


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