Add your 1&1 Internet domain to Office 365 and change the nameservers to point to Office 365

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Learn more about Office 365 at http://products.office.com/en-us/business/compare-office-365-for-business-plans/?=SOC_YT_SMBOpt_OfficeSku_internetdomain

If your domain is registered at 1&1 Internet and you want to use it with your Office 365 site, this video shows you how to verify that you own the domain, and then change your domain's nameserver records. When you’re done, Office 365 will set up your services, like email and Lync, for you and your organization. Let’s get started!

With an Office 365 subscription, you can edit and create new documents on your devices. Microsoft Office 365 delivers the power of cloud productivity to businesses of all sizes, helping save time, money, and free up valued resources. Office 365 combines the familiar Microsoft Office desktop suite with cloud-based versions of Microsoft’s next-generation communications and collaboration services—including Microsoft Exchange Online, Microsoft SharePoint Online, Office Online, and Microsoft Skype for Business Online—to help users be productive from virtually anywhere through the Internet.