If your business uses Microsoft 365, distribution lists are one of those features that quietly save a significant amount of time, once they’re set up properly. Whether you’re emailing your entire company, a specific department, or a project team, a distribution list means typing one name instead of twenty individual addresses every time.

But Microsoft has made some notable changes to how distribution lists work in recent years, and the terminology across different versions of Outlook doesn’t always help. Here’s a clear, up-to-date guide to what distribution lists are, how to create and manage them, and when a different type of group might serve your business better.

What Is a Distribution List in Microsoft 365?

 

A distribution list (sometimes called a distribution group) is a single email address that, when sent to, delivers the message to every member of the group simultaneously. From the sender’s perspective it works like any other email address. Behind the scenes, Microsoft 365 routes the message to every individual on the list.

Distribution lists are managed through the Microsoft 365 admin centre or the Exchange admin centre, and are typically set up and maintained by an IT administrator. They’re ideal for one-way or broadcast communication — sending company announcements, department updates, or team notifications to a defined group.

It’s worth knowing that Microsoft has made changes to how distribution lists are managed in recent years. Managing distribution groups directly from Outlook on the web is no longer supported as of August 2023. Administration now takes place through the Exchange admin centre, which gives IT administrators more consistent control but means end users can no longer manage organisation-wide lists from within Outlook itself.

 

 

 

Contact Lists vs Distribution Lists: What’s the Difference?

 

This is where terminology gets confusing, and it’s worth being clear about it.

Organisation-wide distribution lists are created and managed by an IT administrator in the Microsoft 365 or Exchange admin centre. They have their own email address, appear in the company’s Global Address List, and can be sent to by anyone in the organisation (or externally, if configured to allow it). These are the distribution lists most businesses think of when managing team or department email groups.

Personal contact lists (previously called contact groups in classic Outlook) are created by individual users for their own use. They don’t have a dedicated email address, aren’t visible to the rest of the organisation, and exist only in the individual’s contacts. They’re useful for personal use (regularly emailing the same group of external contacts, for example) but aren’t a substitute for a properly managed organisation-wide distribution list.

The new Outlook desktop app and Outlook on the web share the same contact system, meaning a contact list created in one will automatically appear in the other. Classic Outlook users who have personal contact groups may find these don’t automatically appear in the new Outlook, and Microsoft recommends recreating them as contact lists if this occurs.

 

 

 

Creating an Organisation-Wide Distribution List

 

Creating and managing organisation-wide distribution lists requires administrator access in Microsoft 365. The process is straightforward for anyone with the appropriate admin role:

Via the Microsoft 365 admin centre: Sign in at admin.microsoft.com and navigate to Groups → Active groups. Select Add a group and choose Distribution as the group type. Give the group a name and email address, assign an owner who will be responsible for managing membership, add members, and save. The group will appear in the Global Address List and be available to send to across the organisation.

Via the Exchange admin centre: For more advanced configuration (including moderation settings, delivery management, and MailTips) the Exchange admin centre at admin.exchange.microsoft.com provides the full range of distribution group management options.

Managing membership: Once a distribution list exists, owners can modify the members within the group, the name, and whether or not to have the group moderated. Owners manage their groups through the Exchange admin centre or via the dedicated groups portal, without needing full admin access.

 

 

 

Creating a Personal Contact List in Outlook

 

For individual users who want to create a personal email group without IT involvement, the process varies slightly depending on which version of Outlook you’re using.

In Outlook on the web or the new Outlook desktop app: Open Outlook and click the People icon in the left sidebar. Click the dropdown arrow next to New contact and select New contact list. Give the list a name, add members by typing names or email addresses, and click Create. The list will be available when composing emails — simply type the list name in the To field.

In classic Outlook for Windows: Go to People in the navigation bar. Click New Contact Group in the ribbon. Give the group a name and use Add Members to add contacts from your address book or by typing email addresses directly. Click Save & Close.

 

 

 

Distribution Lists vs Microsoft 365 Groups: Which Should You Use?

 

This is an important distinction that many businesses overlook. Distribution lists and Microsoft 365 Groups are different tools with different purposes, and choosing the right one matters.

Distribution lists are best for straightforward email broadcasting, sending the same message to a defined set of recipients. They’re simple, widely understood, and do exactly what they say. They don’t provide any shared workspace, calendar, or file storage.

Microsoft 365 Groups go significantly further. A Microsoft 365 Group can serve the same function as a distribution list and also offer users many additional features, including a collaboration workspace, shared calendar, and integration with SharePoint, Teams, and other Microsoft 365 services. For teams that need to communicate and collaborate (rather than just receive broadcast emails) a Microsoft 365 Group is typically the better choice.

The practical question to ask is: does this group just need to receive emails, or does it need to work together? If the answer is the latter, a Microsoft 365 Group connected to a Teams channel and SharePoint site will serve the team far better than a distribution list.

 

 

 

 

Best Practices for Managing Distribution Lists in Microsoft 365

 

Assign clear ownership. Every distribution list should have a named owner responsible for keeping membership up to date. Lists that nobody owns tend to accumulate former employees and become unreliable over time.

Review membership regularly. Stale distribution lists (particularly those that include leavers or people who have changed roles) are a common source of data governance issues and embarrassing email misdirection. A quarterly review of active distribution lists is good practice.

Use descriptive names. A distribution list called “Team1” or “Group2” becomes confusing quickly. Names that clearly describe the purpose and scope (“Sales Team UK,” “All Staff,” “Finance Department”) make lists easier to manage and less likely to be misused.

Consider moderation for sensitive lists. For distribution lists that include the whole company or external recipients, enabling moderation (where a nominated person approves messages before they’re sent to the group) prevents accidental or unauthorised bulk emails.

Document your lists. Maintaining a simple record of what distribution lists exist, who owns them, and who is a member makes administration significantly easier and supports data governance obligations under UK GDPR.

 

 

 

Need Help Managing Your Microsoft 365 Environment?

 

Distribution lists are just one aspect of a well-managed Microsoft 365 environment. User accounts, security groups, shared mailboxes, permissions, and licensing all require ongoing attention to keep your organisation running smoothly and securely.

At Via Wire, we manage Microsoft 365 environments for businesses of all sizes, handling everything from user administration and group management through to security configuration and ongoing support. Get in touch today to discuss Microsoft 365 management for your business.