How to Create a Distribution List in Outlook (2026 Guide)
Learn how to create a distribution list in Outlook using Contact Groups, Contact Lists, and Microsoft 365 admin tools. Covers all Outlook versions.
To create a distribution list in Outlook, open the People section, create a new Contact Group (classic Outlook) or Contact List (new Outlook / web), add members, save, then address an email to the group name to send to everyone at once. The steps differ depending on which version of Outlook you use. For organization-wide lists managed by an admin, use the Microsoft 365 admin center to create a Distribution List (or Microsoft 365 Group) tied to a shared email address.
Distribution lists are a fast way to email the same group of people repeatedly without retyping addresses. This guide covers every method for creating, managing, and using distribution lists in Outlook - classic Outlook, new Outlook, Outlook on the web, and Microsoft 365.
Which Version of Outlook Are You Using?
Outlook handles distribution lists differently depending on the version. Before following the steps below, check which version you have:
- Classic Outlook (desktop) - The traditional Outlook app with a File menu and ribbon toolbar. Distribution lists are called Contact Groups and are saved to your personal Contacts folder.
- New Outlook (desktop) - Microsoft's redesigned Outlook app for Windows and Mac. Distribution lists are called Contact Lists and sync across your devices.
- Outlook on the web - The browser version at outlook.office.com. Uses the same Contact List system as new Outlook.
- Microsoft 365 admin - For organization-wide lists with a shared email address. Created in the admin center, not in Outlook itself.
If you are not sure which desktop version you have, look in the top-right corner. A toggle labeled "Try the new Outlook" or "New Outlook" means you can switch between them.
Method 1: Create a Contact Group in Classic Outlook (Desktop)
A Contact Group is a personal distribution list saved in your Contacts folder. It does not need admin permissions and works with any Outlook account.
Step-by-Step Setup
- Open classic Outlook and click the People icon in the navigation pane (bottom left).
- On the Home tab, click New Contact Group.
- In the Name field, type a clear name for your group (e.g., "Support Team", "Q2 Clients").
- Click Add Members, then choose where the contacts live:
- From Outlook Contacts - pick from your saved contacts.
- From Address Book - pick from the global address list (Exchange or Microsoft 365 accounts).
- New E-mail Contact - type an address manually.
- Select the members and click Members, then OK.
- Click Save & Close.
The Contact Group now appears in your Contacts folder. To use it, start a new email and type the group name in the To field - Outlook expands it to all members when you send.
Edit a Contact Group
Open the People folder, double-click the group, then use Add Members or right-click a name and choose Remove Member. Save & Close to apply.
Method 2: Create a Contact List in New Outlook or Outlook on the Web
New Outlook and Outlook on the web share the same interface. Distribution lists here are called Contact Lists.
Step-by-Step Setup
- Open new Outlook or sign in at outlook.office.com.
- Click the People icon in the left sidebar.
- Click the dropdown arrow next to New contact, then choose New contact list.
- Enter a list name and optional description.
- In the Add email addresses field, type a name or address. Select from the suggestions or press Enter to add a manual entry.
- Repeat for each member.
- Click Create.
To use the list, compose a new message and type the list name in the To field. The list expands to all members on send.
Edit a Contact List
Open the People app, find the list under Your contact lists, click it, then use Edit to add or remove members.
Method 3: Create a Distribution List in Microsoft 365 (Admin)
The first two methods create personal lists - only you can use them. For organization-wide lists that anyone can email (like [email protected] going to your whole support team), an admin creates a Distribution List or Microsoft 365 Group in the admin center.
Step-by-Step Setup
- Sign in to the Microsoft 365 admin center as a Global or Exchange admin.
- Go to Teams & groups > Active teams & groups.
- Click Add a team or group, then choose Distribution list.
- Enter:
- Name - friendly name shown in the address book.
- Email - the shared address (e.g.,
[email protected]). - Owners - people who can manage membership.
- Add members, then save.
Members receive a copy of every email sent to the shared address. There is no shared inbox view - each person handles their copy independently.
Distribution List vs Microsoft 365 Group
Microsoft now recommends Microsoft 365 Groups over classic distribution lists for most cases. The differences:
| Feature | Distribution List | Microsoft 365 Group |
|---|---|---|
| Shared inbox view | No | Yes |
| Shared calendar | No | Yes |
| External email | Configurable | Yes by default |
| Conversation threading | No | Yes |
| File storage | No | Yes (SharePoint) |
| Best for | Simple announcements | Team collaboration |
For a deeper comparison including shared mailboxes, see our guide on shared mailbox vs distribution list.
How Distribution Lists Compare to Other Group Email Options
Distribution lists are one of four ways to send group email in Microsoft 365. Each suits a different use case:
| Option | Personal or Shared | Best Use Case |
|---|---|---|
| Contact Group / Contact List | Personal | One person emails the same group regularly |
| Distribution List | Shared | Announcements to a department or company |
| Microsoft 365 Group | Shared | Team collaboration with shared inbox and calendar |
| Shared Mailbox | Shared | Customer-facing addresses with a single inbox view |
If you handle customer support, the distribution list pattern is rarely the right fit. Every team member gets a personal copy, no one knows who is replying, and replies do not thread together. A shared inbox or help desk tool is a better choice for customer email.
Sending Limits
Outlook and Microsoft 365 cap how many recipients you can include in one message. The exact limits depend on your account type:
- Outlook.com (personal) - 100 recipients per message, 500 per day.
- Microsoft 365 Business / Enterprise - 500 recipients per message, 10,000 per day.
- Microsoft 365 admin distribution list - membership cap is 100,000.
If your distribution list has more members than the per-message limit, the send fails. Split the list or use a mass-email tool like Mailchimp or Constant Contact instead.
Common Distribution List Errors
"The Name Cannot Be Resolved"
You typed the list name but Outlook does not recognize it. Causes:
- The list is in a different mailbox you do not have access to.
- The address book has not refreshed since the list was created.
- A typo in the name.
Click Address Book to search the directory and pick the list directly.
Members Are Missing
A new member was added but is not receiving messages. For Microsoft 365 lists, membership changes can take up to an hour to propagate. For personal Contact Groups, edit and re-save the group to refresh.
Replies Go to the Whole List
When you reply to a message sent to a distribution list, Outlook defaults to Reply All. Use the Reply button instead of Reply All to respond to the sender only. Admins can also configure the list to remove the original list address from replies.
External Senders Are Blocked
Microsoft 365 distribution lists block external senders by default. To accept email from outside your organization, an admin must edit the list and uncheck Require that all senders are authenticated in the delivery management settings.
When a Distribution List Stops Being Enough
Distribution lists work when one person is sending updates to many. They break down quickly when many people need to handle replies to one shared address.
Three signs you have outgrown a distribution list:
- No one knows who is replying. Two team members start typing answers to the same customer. The customer gets two different responses.
- Replies disappear. A message sent to the list expects a response, but everyone assumes someone else has it. Nothing happens for two days.
- You cannot track what got answered. There is no record of which messages were resolved, which are pending, and how long they took.
At that point, a shared inbox or help desk is the right move. Instead of every member getting a personal copy, the team sees one shared view with assignments, statuses, and reply history.
SupportBee's customer service software gives every team member the same view of every customer email. Assignments, internal notes, and reply tracking are built in - so you stop relying on luck and team coordination to keep customers happy. See our notes on email templates in Outlook and how to add a shared mailbox in Outlook for related Outlook setup guidance.
Distribution List Quick Reference
| Task | Where |
|---|---|
| Personal list (classic Outlook) | People > New Contact Group |
| Personal list (new Outlook / web) | People > New contact list |
| Organization-wide list | Microsoft 365 admin center > Teams & groups |
| Edit members | Open the group/list, Add/Remove members, Save |
| Send to the list | Type the list name in the To field |
| Check sending limit | Microsoft 365 Service Health, or your admin |
Frequently Asked Questions
What is the difference between a Contact Group and a Distribution List? A Contact Group is a personal list stored in your Outlook mailbox - only you can use it. A Distribution List is an organization-wide list created by an admin with its own shared email address that anyone in the company can send to.
Can I share a Contact Group with my team? Not directly. Contact Groups are tied to one mailbox. To share a list with the team, create a Distribution List or Microsoft 365 Group in the admin center, or have each person create the same Contact Group.
How do I find an existing distribution list in Outlook? For personal lists, look in the People folder. For organization-wide lists, click the Address Book button in a new message and search by name.
Does new Outlook support Contact Groups created in classic Outlook? Yes. Contact Groups created in classic Outlook sync to new Outlook and appear under Contact Lists. The interface is different but the data is the same.
Can a distribution list have nested lists as members? Yes for Microsoft 365 distribution lists - an admin can add one list as a member of another. Personal Contact Groups do not support nesting.
What is the maximum size of a distribution list in Outlook? Personal Contact Groups have no hard limit but slow down past a few hundred. Microsoft 365 distribution lists can hold up to 100,000 members. Sending limits still apply per message.
Next Steps
Pick the method that matches your version of Outlook and create your first distribution list. If you are setting up an email address that multiple team members need to respond to - especially customer support, sales, or partnerships - a distribution list is usually the wrong tool. Compare it against a shared mailbox or shared inbox before committing. The right choice early on saves a lot of confusion later.
If you also work with Gmail accounts, see how to create a distribution list in Gmail for the Google Workspace equivalent.