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How to Add Multiple Names or Aliases to a Microsoft 365 Distribution List

Phi Hung Vo Oct 15, 2026 869 views

Question details

The user wants to know if a single Microsoft 365 distribution list can have multiple display names or aliases (such as ContosoSale and ContosoTech) and how to configure them.

Can One Microsoft 365 Distribution List Have Multiple Names or Aliases?

Product: Microsoft 365
Device & OS: not provided
Scenario: Administering organization emails where a single distribution group needs to receive emails from multiple distinct addresses without creating duplicate groups.
Observed behavior: By configuring additional proxy addresses in the admin center, multiple email aliases can route successfully to the same distribution list.

Before you start

Ensure you have Exchange Administrator or Global Administrator permissions in Microsoft 365 to access and modify the Active teams & groups settings.

Solution 1Recommended

Configure Aliases and Proxy Addresses in the Admin Center

Modify the distribution list's properties in the Microsoft 365 admin center to add multiple proxy addresses, allowing it to receive emails from different aliases.

Changing a primary alias does not automatically create multiple aliases. You must manually define extra proxy addresses to allow the group to receive emails sent to these alternative names.

Access Active Teams & Groups

Log in to the Microsoft 365 admin center, navigate to **Teams & Groups** on the left sidebar, and click on **Active teams & groups**.

Select the Distribution List

Locate and click on the specific distribution list you want to modify to open its properties panel.

Edit Aliases

In the properties panel, find the email section and click on **Edit alias**.

Add Proxy Addresses

Input your desired secondary names (such as ContosoSale or ContosoTech). Ensure these are added as additional proxy addresses rather than overwriting the primary alias.

Save Changes

Click **Save changes** to apply. The distribution list will now receive emails sent to both the primary address and the newly added proxy addresses.

Configure Aliases and Proxy Addresses in the Admin Center

Propagation Time: It may take some time for newly added proxy addresses to fully propagate and start receiving emails across the Exchange network.

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Frequently Asked Questions

Can I reply to an email using the distribution list's alias?

By default, replies will be sent from the primary email address of the distribution list. Sending from an alias requires specific 'Send As' permissions configured via Exchange PowerShell.

Is there a limit to the number of aliases a distribution list can have?

Yes, Microsoft 365 allows up to 400 proxy addresses (aliases) for a single recipient, including distribution lists.

Will external users be able to email the new alias immediately?

It typically takes a few minutes, but it can take up to 24 hours for DNS and Exchange server changes to fully propagate worldwide before external emails route successfully.

What happens to the old email if I change the primary alias?

If you change the primary alias, the previous primary address is usually kept as a secondary proxy address, meaning the list will still receive emails sent to the old name.

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