i am not able to send a group email

Question

i am not able to send a group email

Terry Burlingame 0

Have created a new list on new outlook and it won't send. there are 67 members in the group, though it says 0

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3 answers

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Answer 1

Hornblower409 16,200

@Terry Burlingame said

Have created a new list on new outlook ... there are 67 members in the group, though it says 0

Is this what you are seeing?

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If so, it's a known bug.

To see the actual members, Edit the List

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and it won't send.

In my experience you can still send to the list.

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If you have any doubts, click the "+" to expand the list to it's members before you send.

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Jane Reid 5 Reputation points

2026-06-01T08:23:38.13+00:00

I get the 0 members notice and I still cant send it, unless I click the "+" . I assume there is no way to solve this issue?
Hornblower409 16,200 Reputation points

2026-06-01T11:53:34.43+00:00

@Jane Reid said

I still cant send it, unless I click the "+"

That is not what I am seeing. I am able to Send an email to the Contact List without expanding it and the email is sent to all the members of the List.

Do you see any errors when you Send? Or the email just doesn't arrive for All/Some of the List Members?

I assume there is no way to solve this issue?

As far as I know, this is a "backend" (Microsoft Server) problem and there is nothing you can do to fix it.
Jane Reid 5 Reputation points

2026-06-01T11:56:32.1466667+00:00

Thank you - it just tells me that it cannot send so it doesn't go from my Outbox. Oh well, at least there's a way around it with the "+".
Hornblower409 16,200 Reputation points

2026-06-01T12:35:09.15+00:00

@Jane Reid said

it just tells me that it cannot send so it doesn't go from my Outbox

Thank you for the feedback. That is not what I am seeing but it might apply to other users.

Answer 2

Hello Terry Burlingame

I understand how frustrating it is when you spend time creating a contact list of 67 members in the New Outlook for Windows, only for the app to display "0 members" and refuse to send your group email.

Have you already tried Q&A Assist suggestions? In addition, could you confirm:

What is the domain or provider of the email account you are using? (For example: Is it a Microsoft address like ⁠@outlook.com⁠ / ⁠@hotmail.com⁠, or a third-party account like ⁠@gmail.com⁠ or ⁠@yahoo.com⁠?)

In the meantime, please try the following:

1, Recreate and verify the list via the web browser:

Go to Outlook on the web
Click on the People icon (the two-person silhouette on the left menu).
Look for your contact list there.

If it shows 0 members, add them directly on the web version.

2, Verify Contact Storage location

Make sure the 67 individuals are saved under your primary Microsoft account's "Contacts" folder, not under a separate local folder or a secondary email account's address book.

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Anonymous

2026-05-31T03:09:19.58+00:00

Good day Terry Burlingame, I hope you're well. May I know if you've got any chance to check my reply? If you have any further updates on this issue, please feel free to reach back. I'm happy to help you.

Answer 3

New Outlook for Windows currently has limitations around contact lists (formerly contact groups) and group-related features compared to classic Outlook.

Key points from the available information:

New Outlook does not support sharing contact lists
- The documentation explicitly states that “new Outlook does not support sharing contact lists.” This indicates that contact list functionality is incomplete compared to classic Outlook and can affect how lists behave when used in messages.
- This can manifest as lists showing incorrect member counts (for example, 0 members) or not working as expected when sending to many recipients.
Use a properly created contact list (contact group) and verify members
- In new Outlook, contact lists are created from the People view. Ensure the list was created there and that each member is actually stored as a contact and added to the list, not just appearing as an empty or broken entry.
- If the list shows 0 members, recreate it and add members again from valid contacts.
Consider using classic Outlook or an Outlook Group if robust group mailing is required
- For more reliable bulk/group sending and richer functionality, the guidance is to use:
  - A contact list in classic Outlook, or
  - A Microsoft 365 Group (which provides shared inbox, calendar, and files) instead of a simple contact list.
If sending still fails, troubleshoot as a general send issue
- Check that Outlook is connected (status bar not showing Disconnected, Working Offline, or Trying to connect…).
- Confirm there are no oversized attachments that could block sending.

Given the current limitations in new Outlook, the practical workarounds are:

Recreate the list and verify members in People, then try again.
If the list still shows 0 members or messages won’t send, switch to classic Outlook for sending to that list, or move to a Microsoft 365 Group for more reliable group email.

References: