Nov 20 2014

How to disable IE Enhanced Internet Security in Windows Server 2012

If you are like me and build a lot of labs for testing then you’d probably been hampered by the popups caused by IE Enhanced Internet Security when opening and trying to access webpages. This happens to me all the time. Try and download dependencies for Exchange when IE Enhanced Security is turned on. It’s a pain in the neck.

In this video I show you how to disable IE Enhanced Internet Security so that you can get on with the job of downloading dependencies and install your applications in your lab.


Nov 19 2014

Unable to logon to a reconnected mailbox in Exchange 2010

I tested a few things today and one of them was to disable my mailbox in Exchange 2010. After running Clean-MailboxDatabase databasename I was able to see the disconnected mailbox and reconnect it to my user account.

I then tried to login into my mailbox using Outlook and Outlook WebApp. It looked like it was connecting in Outlook but the mailbox showed disconnected. Outlook Webapp returned with an error that my account is disabled.

To rectify this I just ran Clean-MailboxDatabase databasename again from Exchange Power Shell and was able to logon in Outlook WebApp and Outlook.

Note that running this cmdlet did not show the disabled mailbox immediately so don’t be alarmed, just give it a few minutes to process.


Nov 16 2014

How to install the telnet client in Windows 8 and 8.1

I’ve built a Ubuntu Server to backup my Home server data and needed to test a few ports to see if they are open. Windows 8 and 8.1 does not have the telnet client installed by default so I decided to post an article to show you how to enable it. Below are the steps involved and a video showing how to enable telnet.

  1. Open up the control panel.
  2. Click on Programs and Features.
  3. Click “Turn Windows Features on of Off” on the left in the Programs and Features window.
  4. Scroll down till you see “Telnet Client” and check the check box.
  5. The telnet client will now install.
  6. Windows needs to restart after the telnet client has been installed.
  7. Open the command prompt after Windows loaded and type telnet. You should now be able to use telnet.

Here’s a quick video I made for a step by step:

Nov 2 2014

Delivery has failed to these recipients or groups: Your message can’t be delivered because delivery to this address is restricted.

You probably have a lot of devices like printers, main frames and other non Microsoft systems sending mail to distribution groups inside your organisation.

If that’s the case and you receive an NDR as per below screenshot then you need to check authentication settings on the distribution group.


I recently had this problem where mail would not deliver to the recipients and after some testing we were able to generate the above NDR. The Distribution Group was set t only allow mail from authenticated users thus the reason for the mail delivery failure. The main frame is not able or setup to authenticate with Active Directory and could not send mail to that Distribution Group.

Follow the below steps to rectify the problem:

1. Open the Exchange Management Console
2. Click on “Recipient Configuration”
3. Click on “Distribution Group”
4. Find the Distribution Group that is not receiving the e-mail
5. Double click the Distribution Group or Right Click on it and choose Properties
6. Click on the “Mail Flow Settings” Tab
7. Double Click on “Message Delivery Restrictions”
8. Clear the check box next to “Require that all senders are authenticated” as per below screen shot. Now test mail flow from your system that is not able to authenticate.