What a group email is and why you'd use one

A group email in Outlook is a saved list of contacts that you can send a single message to all at once, rather than typing each address individually. When you create a group, you give it a name — like "Marketing Team" or "Monthly Book Club" — and add the email addresses of everyone in that group. Later, you type the group name in the To field and Outlook expands it to all the addresses you stored.

The main reason to use a group is speed and accuracy. If you send the same message to the same eight people every week, typing eight addresses eight times a week is tedious and error-prone. A group takes thirty seconds to set up and then saves you time every single time you use it. Groups also keep you from accidentally leaving someone out or misspelling an address.

Groups are also useful for organizing your own thinking. If you maintain a list called "Vendors to Check In With" or "People Who Asked About the Project," you have a record of who belongs in that category without hunting through your contacts one by one.

Key Takeaways

  • A group email is a named list of contacts that you can send one message to all at once by typing the group name instead of individual addresses.
  • You create a group by opening your Contacts, selecting New Contact Group, naming it, and adding members one at a time or pasting multiple addresses.
  • Once created, a group appears in your To field autocomplete, so you can type the group name and Outlook fills in all the addresses.
  • You can edit a group later by adding or removing members, and changes take effect the next time you use that group to send mail.

How to create a new group in Outlook desktop

Open Outlook and go to the People tab at the bottom of the left sidebar (or press Ctrl+3). This opens your Contacts view. At the top of the window, look for the New Contact Group button — it may say "New Group" depending on your Outlook version. Click it.

A new window opens with a blank group form. In the field labeled Group Name, type the name you want to use — for example, "Weekly Standup" or "Client Contacts." This is the name you will type in the To field when you send mail, so make it short and clear. Do not use special characters like asterisks or slashes, as Outlook may reject them.

Below the group name, you will see a section labeled Members with an empty list. Click the Add Members button. A small window appears with two options: "From Outlook Contacts" and "From Directory." If the people you want are already in your Outlook contacts, choose "From Outlook Contacts." If you are adding people from your company directory or another source, choose "From Directory."

A list of your contacts appears. Click each person you want to add to the group — their name will highlight. You can select multiple people by holding Ctrl and clicking each name. Once you have selected everyone, click OK. The names now appear in the Members list on the group form.

Adding members by pasting email addresses

If you have a list of email addresses in a document or spreadsheet and do not want to add them one by one, you can paste them directly. Open the group form and click Add Members, then choose "From Outlook Contacts" or "From Directory" as before. At the bottom of the selection window, look for a field or button labeled Add Members or Paste — the exact label varies by Outlook version.

Copy your email addresses from your document (they should be separated by semicolons or line breaks) and paste them into this field. Outlook will attempt to match each address to a contact in your directory. If an address does not match an existing contact, Outlook will add it as a new external member. Click OK when done.

If you do not see a paste option in your version of Outlook, add members one at a time using the method above, or type addresses directly into the Members field if your version allows it. Check the field itself — some versions let you click in the Members area and type or paste addresses directly.

Saving the group and using it to send mail

Once you have added all the members you want, click the Save button at the top of the group form. The group is now stored in your Contacts. Close the group window.

To send an email to the group, open a new message (Ctrl+N or click New Email). In the To field, start typing the group name. Outlook's autocomplete will show the group name as an option. Click it or press Enter to select it. Outlook expands the group name to show all the member addresses (you will see them listed, sometimes in a small box). Type your message and send as normal.

The group name appears in the To field, but when the message is sent, Outlook sends it to every address in the group. Recipients see the message as addressed to the group name, not to themselves individually, so they know it was a group message.

Editing or removing a group later

To change a group after you have created it, go to the People tab and find the group in your contacts list. Double-click it to open the group form. You can now add new members by clicking Add Members again, or remove existing members by clicking on a name in the Members list and pressing Delete or clicking a Remove button.

If you want to delete the entire group, right-click it in your Contacts list and select Delete. Outlook will ask you to confirm. Deleting a group does not delete the individual contacts — it only removes the group itself.

Changes to a group take effect the next time you use it. If you add someone to a group on Monday and send a message to that group on Tuesday, the new member will receive the message.

Creating a group in Outlook web (Outlook.com or Office 365)

If you use Outlook through a web browser rather than the desktop app, the process is slightly different. Log in to your Outlook account and click People in the left sidebar. Click New Contact Group or New Group at the top of the page.

Type the group name and click Add Members. A search box appears. Type the name or email of the person you want to add and click their name when it appears in the results. Repeat for each member. Once you have added everyone, click Create or Save (the button label varies). The group is now saved and works the same way as in the desktop version — type the group name in the To field of a new message and Outlook fills in all the addresses.

Frequently Asked Questions

Can I add someone to a group if they are not already in my Outlook contacts?

Yes. When you add members, you can type an email address directly even if that person is not in your contacts. Outlook will add them as an external member. They will receive messages sent to the group just like any other member.

What happens if I send a message to a group and then add a new member?

The new member will not receive the message you already sent. They will only receive messages sent to the group after they were added. If you need to include them in an earlier conversation, you will have to forward the message to them separately.

Can I create a group within a group?

No. Outlook does not support nested groups — you cannot add one group as a member of another group. You can only add individual email addresses to a group.

How many people can I add to a single group?

Outlook itself has no hard limit, but your email provider may restrict the number of recipients per message. Most providers allow 500 or more. If you hit a limit, split the group into two smaller groups.

Will people know they are part of a group when they receive a message?

They will see the group name in the To field, so they will know the message was sent to multiple people. They will not see a list of all the other members unless you use Reply All, which shows all recipients.