How to send from email aliases in Outlook. –

This guide contains instructions on how to set up Outlook to “Send” from an email alias created in Office 365. As you know, when you reply to a message received under an email alias, the “From” field contains your primary email address. and not an alias address. If you want to “Forward” an email alias, continue reading this article.

When you create an email alias for an Office 365 user, all messages that arrive at the email alias address are delivered to the user’s primary mailbox, and replies to those messages are sent through the user’s primary email account. This means that the user’s email address will appear in the “From” given.

To be able to send emails from an Office 365 email alias in Outlook, follow the instructions below to add the new email alias as a secondary account in Outlook, or use the following methods:

    1. Set up a distribution list for email aliases in Office365.
    2. Create a shared mailbox for email aliases in Office 365.

This guide provides step-by-step instructions on how to add an Office 365 email alias as a second account in Outlook so that you can send emails from the alias address.

How to set up Outlook to send emails from Office 365 email aliases.

To set up Outlook to send email using the new email alias you created in the Office 365 admin center, continue by following these steps and add the new email alias as a secondary email account in Outlook:

1. From the File go to the menu Profile settings and press Profile settings, or near Outlook and go Control Panel -> Mail *

1. If you don’t see Mail in Control Panel, set Visibility to Small characters.
2. I prefer to configure email settings from the Mail settings in the control panel, because (for me) it’s an easier and more hassle-free way.

Control Panel

2. Select “Email Accounts” in the options New.

Add a new account

3. Choose Manual configuration or additional server typesand press The next one.

Add an account manually in Outlook

4. Choose POP or IMAP and press The next one.

Send email as an Outlook alias

5a. On the next screen, fill in the blanks as follows:

  • Your name: Enter the user’s display name.

  • Email address: Enter the email address you want to send.

  • Account type: Choose POP3

  • Incoming mail server:

  • Outgoing mail server (SMTP):

  • Username: write the primary email address (username) of the Office 365 user.

  • Password: The user’s Office 365 password.

5b. press Additional settings.

How to send from email aliases in Outlook

6a. Yes General tab, enter a new email alias in the “Reply to Email” field.

How to Add Email Aliases in Outlook

6b. Yes Outgoing server Click to select the tab My outgoing server (SMTP) requires authentication check the box.

Outgoing server settings for Office 365 email aliases

6c. Yes Complicated tab:

  • In Outgoing server (SMTP) box, type: 587.

  • In Use the following type of encrypted connection list, select STARTTLS or CAR.

  • press OK to return to the previous screen.

Advanced settings for Office 365 email aliases

7. press The next one to test account settings.

Outlook settings for Office 365 email aliases

8. When the test is complete, press Termination.


9. Now, in “Account Settings”, select the new email account and click on it Change folder.

Change the specified folder - Outlook

10. Select as the new email delivery address Inbox in your primary account (Exchange or POP3) and click OK.


11. Finally, select Data files tab, and Turn off new mail alias .PST data file.

Remove the Outlook data file

12. When finished, close all windows and open Outlook.

13. Dan File select menu Options.
In the Outlook Options panel, click Complicated and then press Send/receive.

Set up an email alias account in Outlook

15. Click in the “Send/Receive groups” options Editing.

Outlook send/receive options

16. Select an alias account and click on it sure the Add the selected account to this group check the box. Click when done OK, close and OK to close all windows.


17. You are done! If the form is enabled, if you want to send an email using a new email alias, click From whom button and choose a new email alias. *

*Note: If you don’t see it From whom on the field, then New email window, click Options label and inside Show fields group, click From whom.

Send from an alias in Outlook

That’s it! Let me know if this guide helped you by leaving a comment about your experience. Please like and share this guide to help others.

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