Microsoft 365 vs. Professional Email: Which Does Your Business Need?
Both options give you an email address at your own domain, such as you@yourbusiness.com. The difference is what comes with the mailbox. Professional email focuses on business email, contacts, and calendars. Microsoft 365 plans add Office apps, cloud storage, and Microsoft Teams meetings on top of the email. This guide helps you decide whether you need the extras.
What each option includes
On the Kiss My Domain Microsoft 365 page, the plans fall into two groups. The details below come from that page; plan names, storage, and features can change, so check the page for the current list.
| Plan type | What it is built for | Highlights listed |
|---|---|---|
| Email Essentials and Email Plus | Business email without the Office apps | Email on your business domain; 10 GB (Essentials) or 50 GB (Plus) of email storage; contacts and shared calendars; sync across supported devices; up to 400 email aliases |
| Online Business Essentials | Email plus online Office and cloud collaboration | Online versions of Word, Excel, and PowerPoint; 1 TB of OneDrive cloud storage; Microsoft Teams meetings; professional domain email with 50 GB of email storage |
| Online Business Professional | A fuller workflow that includes desktop Office apps | Office apps installed on up to five devices; online Office apps; 1 TB of OneDrive cloud storage; Microsoft Teams meetings |
Looking for a straightforward overview of branded email first? Start with professional email for your business domain.
When professional email is enough
- You mostly send and receive messages, quotes, and invoices.
- Your team already has the document tools it uses today.
- You want to keep monthly costs simple while you get started.
- You mainly want a credible, branded address instead of a free Gmail or Yahoo account. If that is your situation, read business email vs. free email for the full comparison.
When Microsoft 365 is worth considering
- Your team works in Word, Excel, or PowerPoint every day and wants the apps tied to the same account as email.
- You want files in one cloud location. A OneDrive allowance makes it easier to share documents with colleagues instead of emailing attachments back and forth.
- You hold online meetings. Teams meetings are listed with the Microsoft 365 plans on our page.
- You need the desktop apps. Only the Professional plan lists Office apps installed on up to five devices.
Questions to ask before you choose
- How many people need a mailbox, and does everyone need the same features?
- Do you need Office apps, or are web-based versions enough?
- Where do you store files today, and would cloud storage with the mailbox help?
- Do you need shared calendars or role-based addresses such as sales@ and support@?
You need a domain first
Business email runs on a domain you own. If you do not have one yet, search for a domain name before you set up mailboxes. The same domain can then power your website and your email, so every message and web page points back to one brand.
Compare your options
See the current plans, then choose the mailbox setup that fits your team.
Keep learning
- Business email vs. free email: what to choose
- Domain, hosting, email and SSL: what every small business website needs
