In some circumstances, Microsoft cannot host your DNS services. For example, some countries do not permit re-delegation. In other cases, you might need DNS entries for your domain that are not allowed in the Microsoft DNS system. Finally, you might simply be more comfortable keeping DNS services where they are. To configure this, follow the instructions in the section Add a Domain Without the Domain Quickstart Wizard, up to and including verifying the domain. Then, instead of transferring DNS services to Microsoft, view the DNS settings for your domain in the DNS Manager (Figure 6-25) and add the entries to your existing DNS service. When you add the MX records, your mail will be routed to Office 365. Using this method ensures that access to your existing website will continue and that any other DNS entries you rely on will remain present.