Update your domain MX and other DNS records (if you're using a custom domain) On the day you change the MX record, make sure to save your data and uninstall Microsoft 365 if needed. Also, if your users want to move their existing Microsoft email to the new provider, they must take extra steps. If your nameserver (NS) records are pointing to Microsoft 365 nameservers, changes to your MX record don't take effect until you change your NS records to point to your new DNS host (see Step 2).īefore you update the MX record, let your users know the date you plan to switch their email, and the new email provider you plan to use.

(An MX record determines where email for your domain is sent.)

Email sent to your domain stops coming to your Microsoft address and goes to your new email provider instead. Before you remove your domain, be sure to update the DNS records, such as your domain MX record, at your DNS host.įor example, change the MX record at your DNS host. If you set up a custom domain, you added DNS records so the domain would work with Microsoft 365 services. Change your domain nameserver records (if needed) If you are canceling your subscription and you use a custom domain, there are a few extra steps that you must do before you can cancel your subscription.

On the Domains page, select the domain that you want to remove.įollow any additional prompts, and then select Close.

In the admin center, go to the Setup > Domains page.

Remove domain from office 365