Business email with a custom domain lets your company send messages from an address such as [email protected] instead of a consumer mailbox domain.

What do you need for custom-domain email?
You need control of a domain name and an email service that supports mailboxes on that domain. DNS records connect the domain to the email provider.
What should a small business compare?
Compare mailbox storage, spam protection, calendars, mobile access, productivity apps, collaboration tools and the number of users you need.
Why domain-based email matters
A consistent domain gives customers a clear connection between your website and business communication. It also makes it easier to create role addresses such as sales@, support@ or billing@.
Microsoft 365 business email
Microsoft 365 can combine professional email with Microsoft productivity services depending on the plan. Compare Microsoft 365 email plans, or find a domain first if you do not own one.