What a distribution list is and why you need one

A distribution list in Outlook is a single contact that holds multiple email addresses. When you send a message to the list, everyone on it receives a copy. Instead of typing ten addresses into the "To" field or hunting through your contacts each time, you type one name.

Distribution lists are useful for recurring groups: your book club, your department at work, your neighborhood watch, your family. They also make it harder to accidentally leave someone out or send sensitive information to the wrong person. You create the list once, verify the addresses are correct, and then use it the same way you use any other contact.

Outlook calls them different things depending on your version. In Outlook desktop (Windows or Mac), they are called distribution lists. In Outlook on the web, they are called contact groups. The steps are slightly different, so this guide covers both.

Key Takeaways

  • In Outlook desktop, go to the Contacts folder, select New Contact Group, type a name, add members by email address, and save.
  • In Outlook on the web, open your contacts, click New Contact Group, add members by typing their names or addresses, and save.
  • You can add people who are already in your contacts or type in new email addresses directly.
  • Once created, a distribution list appears in your contacts and autocompletes when you start typing the name in the To field.
  • You can edit a list anytime to add, remove, or update member addresses.

Creating a distribution list in Outlook desktop (Windows)

Open Outlook and click the Contacts folder at the bottom of the left sidebar. If you do not see it, click the three dots at the bottom left and select Contacts from the menu.

On the Home tab at the top, click New Contact Group. A window will open with a blank form. Type the name you want for the list in the Name field — for example, "Book Club" or "Marketing Team".

Click Add Members and choose Add from Outlook Contacts if the people are already in your contacts. A dialog box will appear. Click each person you want to add, then click OK. Their email addresses will appear in the Members section of the form.

If someone is not in your contacts yet, click Add Members again and choose New Email Contact. Type their name and email address, click OK, and they will be added to the list. You can also type an email address directly into the Members section if you click in that field.

Once you have added everyone, click Save & Close. The distribution list is now saved in your Contacts folder.

Creating a distribution list in Outlook desktop (Mac)

Open Outlook and click People at the bottom of the left sidebar. On the Home tab, click New Contact Group. A form will open.

Type the name of the list in the Name field. Click Add Members and select Add from Contacts. Find and click the people you want to add, then click Add. You can select multiple people at once by holding Command and clicking each name.

To add someone not in your contacts, click Add Members and select New Contact. Fill in their name and email address, then click Done. They will be added to the list.

When you are finished, click Save. The list is now in your People folder and ready to use.

Creating a contact group in Outlook on the web

Log into your Outlook account at outlook.office.com. Click the People icon in the left sidebar (it looks like a person's head and shoulders).

Click New Contact Group near the top of the page. A form will open. Type the name of the group in the Name field.

In the Members section, start typing a person's name or email address. Outlook will show suggestions from your contacts. Click the person you want to add. Repeat this for each member. You can also paste email addresses directly into the Members field, separated by semicolons.

Once you have added everyone, click Create. The contact group is now saved and will appear in your contacts list.

Using your distribution list to send email

Open a new email message. In the To field, start typing the name of your distribution list. Outlook will show it in the autocomplete dropdown. Click it to add the entire list to the message.

You can also click the To button to open your contacts, find the list, and click it. The list name will appear in the To field, but the actual member addresses will not show until the message is sent. This is normal and keeps the recipient list clean.

When you send the message, everyone on the list receives a copy. If someone replies to the message, their reply goes only to you, not to the whole list — unless they click Reply All.

Editing or deleting a distribution list

In Outlook desktop, go to Contacts, right-click the list you want to change, and select Edit. You can add new members, remove existing ones, or change the list name. Click Save & Close when you are done.

In Outlook on the web, click People, find the contact group, click it to open it, and click Edit at the top. Add or remove members as needed, then click Save.

To delete a list entirely, right-click it (desktop) or click the three dots next to it (web) and select Delete. The list will be removed from your contacts, but no emails will be affected.

Common mistakes and how to avoid them

The most common mistake is typing an email address wrong when you create the list. Before you save, double-check each address for typos. If you notice a mistake later, edit the list and fix it.

Another mistake is forgetting to tell people they are on a distribution list. If you create a list for a group project or team, send a quick message to let them know so they understand why they are receiving emails from it.

Do not use a distribution list for sensitive information like passwords, financial details, or private medical information. Even though the list is in your contacts, email itself is not encrypted, and anyone on the list can see everyone else's address.

Frequently Asked Questions

Can I create a distribution list that includes other distribution lists?

Yes. When you add members to a list, you can select another distribution list as a member. This is useful if you have overlapping groups — for example, a "Company All-Hands" list that includes both the "Marketing Team" list and the "Sales Team" list. In Outlook on the web, you may need to type the list name directly rather than selecting it from contacts.

What happens if someone on my distribution list changes their email address?

You need to edit the list and update their address manually. Open the list, find their name, delete the old address, and type the new one. Outlook will not automatically update addresses if someone changes their email at work or switches email providers.

Can people see who else is on a distribution list when I send them an email?

In Outlook desktop and web, the list name appears in the To field, but individual member addresses are hidden from recipients by default. However, if someone clicks Reply All, they will see all the addresses. If you need complete privacy, use Bcc (blind carbon copy) instead of a distribution list.

Can I share a distribution list with someone else?

In Outlook desktop, distribution lists are stored locally on your computer and cannot be shared directly. In Outlook on the web, you can share a contact group with others in your organization through your company's directory, but the process depends on your organization's settings. Check with your IT department or Outlook help for your specific setup.

What is the difference between a distribution list and a group in Outlook?

A distribution list is a contact that holds email addresses. A group (in Outlook on the web) is similar but may have additional features like a shared calendar or shared inbox, depending on your organization. For personal use, a distribution list or contact group is usually what you need.