Introduction
This module provides insight into how an organization can implement its domain services. It focuses specifically on how to add custom domains into Microsoft 365. An organization may need multiple domain names for different purposes. For example, it may want to add a different spelling of its company name because customers are already using it and their communications failed to reach you. Custom domains allow companies to have their own branding on emails and accounts. This design enables customers to verify who's emailing them (for example, @contoso.com).
In this module, you examine what considerations need to be addressed when planning for a new domain in Microsoft 365, including the domain's DNS requirements. You then review the steps to be taken and the factors that must be considered to add and set up a new domain. These steps include planning the DNS zones and the DNS record requirements in a custom domain.