How to Send Emails from an Alias in Office 365 and Outlook

1. Enabling the Feature

Before you can send emails from an alias, you need to enable this feature. By default, it’s turned off, but you can easily activate it using either the Exchange Online Admin Center or PowerShell.

Using the Exchange Admin Center:

1. Log in to the Exchange Admin Center.
2. Navigate to Settings and select Mail flow.
3. Enable the option to Turn on sending from aliases.
4. You can also explore plus addressing if you’d like to use that feature as well.

Using PowerShell:

Make sure you have the latest Exchange Online PowerShell module installed. Then execute the following command:

# Connect to Exchange Online
Connect-ExchangeOnline -UserPrincipalName your@email.com

# Enable Send from Alias
Set-OrganizationConfig -SendFromAliasEnabled $true

Please note that it might take a few minutes for the feature to fully propagate across your tenant. During our initial test, we could send emails from the alias, but the reply-to field wasn’t set. After waiting a bit longer, everything worked as expected.

2. Sending as an Alias in Outlook

Your Microsoft Office 365 administrator needs to add an alias to your account before you can use this feature. Users cannot create aliases themselves. Once the alias is set up, follow these steps:

1. Open Outlook.
2. Make sure the From field is displayed (if not, enable it under options).
3. Click on From and choose Other email address.
4. Type your alias and click OK.

Next time, you can simply select the alias from the dropdown menu in the From field. When you send an email from the alias, the recipient will only see the alias address, and replies will go back to the alias as well.

3. Using Outlook Online

You can also send emails from your alias address in Office 365 using Outlook Online. The setup is similar:

1. Click on New Message in Outlook Online.
2. Click on the three dots and choose Show From in the dropdown menu.
3. Add your alias address.

And that’s it! You’re now ready to send emails from your alias in Office 365 and Outlook. Remember that this feature enhances flexibility and privacy, allowing you to manage different roles effectively.

If you need assistance configuring this feature, or anything else within your Microsoft 365 environment, please reach out to us at info@clearskytechnology.com.