Alexander Vanwynsberghe

"There is nothing impossible to him who will try"

Adding a custom domain to Office365 using WAAD

I’m playing with my Office 365 Plan E3 Technical Preview subscription for a quite a while now, and I think it’s just great! In this post, I want to guide you through the process of adding a custom domain to your subscription. The way I will show it is by using the Windows Azure Active Directory portal, which I will explain right away.


Did you know that when subscribe to an Office 365 Plan, Microsoft automatically creates a new Windows Azure Active Directory (WAAD) that is associated with your Office 365 account? Well, at first, I didn’t! This is really great! For the people that do not know WAAD, let me quote:

Windows Azure Active Directory (Windows Azure AD) is a modern, REST-based service that provides identity management and access control capabilities for your cloud applications. Windows Azure Active Directory provides a cloud-based identity provider that easily integrates with your on-premises AD deployments and full support of third party identity providers.

When you login at using your Office 365 administration credentials, you see that it’s linked to your subscription like:


Activate your custom domain

Alright, that being said, let’s move on and add a custom domain to our subscription. By default, your subscription domain will be something like That’s great, but using your personal domain is a much more professional way of working of course.  Let’s do that now.

First, click on the ‘domains’ link on the left side. You will see that the  * is already listed there by default. Click on the ‘Add a domain’ button.


In general, the process consists out of 2 mayor steps. First you need to ‘activate’ your domain, meaning that you need to prove that you actually own it. Secondly, you need to ‘manage your DNS settings’ to manage the correct usage of the Office 365 settings. The first wizard you see is the ‘activation’ part. Enter your domain and click ‘next


Now you need to verify that you are the owner of the domain. Out of the box, there are some pre-defined domain registrars listed. My domain is registered somewhere in the Netherlands, so no one of the listed option, so I selected ‘General Instructions


On the next screen, I used the TXT record option. On the DNS management page of my domain registrar, I added the TXT record like:


If you click ‘next’, the service will check the TXT record and you will be able you continue the process. In my case, it only took a few seconds for the TXT record to be applied. In other cases, it can take bit longer. The next step is to select the domain services. In other words, which services will be used with your domain? I selected ‘Exchange’ and ‘Lync’.

Don’t select SharePoint, because the DNS record that you create to enable SharePoint Online for this domain by default restricts all other DNS records from working. What you can do is create a CNAME record with the WWW prefix, and point it to Or even better,, so it will link to the public website. You can then create another CNAME record with the PORTAL prefix, and point it to the SharePoint sites root.


That’s it, your domain is ready to be used, meaning that it’s added to your WAAD account (and thus can be used with your Office 365 subscription).


Configure your custom domain

Now that our domain is active, we can start using it. Click on the ‘Finish’ button (or if you already closed the previous wizard, just click on your Domain and click ‘DNS Settings’.) You will see a nice overview of the DNS entries you need to make on the DNS settings page of your domain registrar. For example:


On the wizard screen, you don’t have the option to ‘validate’ if you entered the correct DNS entries, but there’s an option to validate. Just go back to the screen where you see your domain name listed, click on the domain and select the ‘Troubleshoot domain’ button. It will ask you when you changed the DNS entries. For this quick check, just select ‘more than 72 hours ago’ so it will check it right away. In my case, this was a green result for Exchange (I didn’t configure Lync):


That’s it. Now we can use our custom domain with our Office 365 subscription. Let’s take Exchange for example. To be able to send an email to ‘’, you will need to add the email (alias) to the list of email addresses of the person ‘’. Go to the Exchange admin center – Recipients and edit the mailbox you want. On this new popup, select the ‘email address’ section, and add an SMTP alias like:


That should do the trick, you can now send an email to ‘’, and it should arrive in the mailbox of the user you just configured.

Have fun!

Migrating from Google Apps to

I’ve been a true Google Apps fan for years now. But for a few reasons, I really wanted to move the e-mail management part from Google Apps to The reasons for the move are mainly because of this:

  1. Google Apps is not free anymore. Not a problem for me, as an existing user. But I don’t like the direction that Google is taking with this decision.
  2. I really don’t like Google’s Privacy Policy anymore.

Well, because of that, I decided to make the move. I’ve been a fan of since it was released, so it was the right time to make the switch. In this post, I will describe how you create your own custom domain, the DNS settings you need to make, and how you can make e-mail aliases.

Custom domain

First things first, we need to create a custom domain using Sign in with your Live ID. Note that it can be one from your custom domain. In my case, I already had a Live ID making use of Once you’re signed in, click on the ‘Add Domain‘ button. Enter your domain name, and select ‘Set up for my domain‘. Review and accept the next screen.


You will now get a screen with the question tho prove the ownership of this domain by creating a DNS record. Because we decided to set up for this domain, the first DNS record that you have to create is the MX one. To create an MX record, go to the DNS management part of your personal domain, or contact your hosting provider. The settings will look like this:


Once you’ve added the MX record, you can click on the ‘Refresh‘ button. If everything went correct, you will now be able to add some ‘Member accounts‘. Click on the ‘Add‘ button to create a member account. Enter the account name, for example ‘‘, a first name, last name and password. Click the OK button to add your account.

In fact, that’s all you have to do. You can go to and log in with your new account. Note that you will still see the old ‘hotmail’ look, but you can simply change it to using the options button on the right.

One import part, although for me, is the fact that if you already have a Live ID using this custom domain and you enable ‘mail’ for this custom domain, it will automatically create that user in the ‘Member Accounts. For example, I had a live ID This Live ID also had an inbox, but it was empty off course. But by creating a custom domain, and enabling the mail option on, it automatically created a member account ‘’.  That’s all I had to do.


One thing that is missing from the ‘Windows Live Domains’ is the ‘Alias‘ feature. Well, in fact it does exist, it’s just not available from the interface. It’s possible to create aliases using the Admin Center SDK. After some Bing’ing (I couldn’t be the first one with this problem), I found a nice and easy solution to manage my aliases. It’s called WLALIAS. This is a command-line based tool making use if the Windows Live API.

Once you’ve downloaded the tool (version 1.5). You can add the following command to add a new alias (it will ask you to provide the Live ID you’ve been using to create the custom domain)

MemberName is the Member Account from
Alias is the name of how your alias will look like.

After you execute this command, you will receive an email on your ‘MemberName’ account telling you that an alias has been added. To get an overview of all aliases linked to your ‘MemberName’. Execute the following command:

You will now get a list of your aliases:


That’s it. My e-mails are now using, I’m happy! One thing that you also have to do off course is moving your ‘old’ Google Apps mails to You can do this by enabling POP on Google Apps, and link this POP account to your account (but this can fail, mainly if you have lots of e-mails). Another option is to use the Outlook client. Simply add the 2 accounts (Google Apps and and copy paste your folders.

Good luck!