Edit a distribution list by opening it from your Contacts folder, then add or remove members and save
To edit a distribution list in Outlook, open your Contacts folder, find the list by name, double-click it to open the details window, then add or remove email addresses in the members section. The steps differ slightly depending on whether you use Outlook desktop, Outlook on the web, or Outlook for Mac, but the core process is the same: locate the list, open it, make your changes, and save.
A distribution list is a group of email addresses stored under one name. When you send a message to the list, it goes to everyone on it at once. Editing means adding new people, removing old ones, or changing the list's name or description.
Key Takeaways
- In Outlook desktop, distribution lists live in your Contacts folder under the name you gave them, not in a separate menu.
- Double-clicking the list opens an edit window where you can add members by typing email addresses or selecting them from your contacts.
- Removing someone means highlighting their name in the members box and pressing Delete or clicking the remove button.
- Changes save automatically when you close the window in Outlook on the web, but desktop versions require you to click Save and Close.
- If you cannot edit a list, you may not own it — lists created by your organization's administrator may be read-only.
How to edit a distribution list in Outlook desktop
Open Outlook and go to your Contacts folder. Look for the distribution list by name — it appears with a small group icon next to it, not a single person icon. Double-click the list name to open it.
The window that opens shows the list's name at the top and a box labeled "Members" or "Distribution List Members" below. To add someone, click inside the members box, then either type their email address directly or click the button labeled "Select Members" (or a similar label depending on your Outlook version) to choose from your existing contacts. Type or paste each address on a new line, or select multiple contacts at once from the dialog that appears.
To remove someone, click their name in the members box to highlight it, then press Delete or click a remove button if one appears. After you finish adding or removing people, click "Save and Close" at the top right of the window. The list is now updated.
How to edit a distribution list in Outlook on the web
Log into Outlook on the web and click the People icon in the left sidebar (it looks like a person's head and shoulders). Find your distribution list in the list of contacts and click it once to select it. A preview pane opens on the right side of the screen.
Click the pencil or edit icon in the preview pane to open the full edit view. You will see a field for the list name and a section showing current members. To add someone, click "Add member" or a similar button, then type their name or email address. Outlook will suggest matches from your contacts as you type. Click the person's name to add them.
To remove a member, find their name in the members list and click the X or trash icon next to it. Changes in Outlook on the web save automatically when you close the edit view, so you do not need to click a separate Save button.
How to edit a distribution list in Outlook for Mac
Open Outlook for Mac and click the People icon in the toolbar at the top. Find your distribution list in the contacts view. Right-click the list name and select "Edit" from the menu that appears, or double-click the list to open it.
The edit window shows the list name and a section for members. Click the plus sign (+) button to add a new member, then type the person's email address or name. If the person is already in your contacts, Outlook will suggest them as you type. To remove someone, click their name to select it, then press Delete or click the minus sign (−) button.
Click "Save" when you are finished. On Mac, the Save button is usually at the bottom of the window or in the top menu bar depending on your Outlook version.
What to do if you cannot edit a distribution list
If the edit window opens but the members box is grayed out or you cannot make changes, the list may be managed by your organization's administrator. Some companies create distribution lists that employees can use but cannot modify. In this case, contact your IT department or administrator to request changes to the list.
If you own the list but still cannot edit it, try closing Outlook completely and reopening it. Sometimes a temporary glitch prevents editing until you restart the program. If the problem continues, check whether you are signed into the correct email account — you can only edit lists you created or that were shared with you as an owner.
Adding members from outside your organization
You can add external email addresses to a distribution list you own. Type the full email address directly into the members field, even if the person is not in your contacts. Outlook will accept any valid email address format.
If your organization uses security policies that block external recipients, you may see an error message when you try to add someone from outside your company domain. In that case, contact your IT department to ask whether external distribution list members are allowed, or request that the external person be added to your organization's directory first.
Renaming a distribution list
To change a distribution list's name, open it for editing using the steps above for your version of Outlook. At the top of the edit window, you will see a field showing the current list name. Click in that field and type the new name. You can also add a description or notes about the list's purpose in a separate field if one appears.
Keep the name short and descriptive so people recognize the list when they see it in their contacts. For example, "Marketing Team" is clearer than "MT" or "Group 1". After you change the name, save the list. The old name will no longer appear in your contacts.
Frequently Asked Questions
Can I edit a distribution list that someone else created?
Only if they shared it with you as an owner. If you can open the list but cannot edit it, you have read-only access. Ask the person who created the list to either give you owner permissions or make the changes themselves.
What happens to emails already sent to the old list name if I rename it?
Old emails in your sent folder still show the old list name — Outlook does not update past messages. Going forward, new emails will show the new name. The list itself works the same way regardless of its name.
Can I delete a distribution list?
Yes. Right-click the list in your Contacts folder and select Delete, or select it and press Delete. This removes the list from your contacts but does not affect the people on it — they remain in your regular contacts. If the list is managed by your organization, you may not have permission to delete it.
How many people can I add to a distribution list?
Outlook itself has no hard limit, but your email provider or organization may restrict list size. Microsoft 365 and most corporate email systems allow hundreds of members. If you try to send to a very large list and get an error, contact your IT department to check your organization's limits.
Do distribution list members know they are on the list?
No. Adding someone to a distribution list does not notify them. They only know they are on the list if they see it in the "To" field when you send a message to the whole group, or if you tell them directly.