After adding the Office 365 SRV records in the external DNS, we like to verify…
Send from Alias in Office 365
Microsoft listened and added support to send from alias address in Office 365/Microsoft 365. However, the Send as Alias feature will only work for Exchange Online mailboxes and does not work for Exchange on-premises mailboxes. This article will show how to enable Send from Alias feature in the Microsoft 365 tenant. Also, how to send email as alias in Outlook and Outlook on the web.
Table of contents
Introduction
Many users ask how to send from an alias address. That’s most of the time the first question they ask after the service desk tells them that they did create an alias address for them. Unfortunately, the answer from the service desk to the users is that the purpose of the alias address is to receive and not to send from.
Note: An Alias is also known as a proxy address or secondary SMTP address.
Microsoft did listen to the feedback, and they did implement that feature in Office 365/Microsoft 365. The users can send as alias, after enabling the send as alias feature in the Microsoft 365 tenant.
This means that you don’t have to create new mailboxes and map them to the user mailbox so they can send from that mailbox. Another benefit is that an alias address doesn’t count for a license, which helps to reduce costs.
Note: The send from alias address feature in Microsoft 365 is turned off by default, and you have to enable that manually.
Check Aliases in Office 365
Sign in to Microsoft 365 admin center. Click on Users > Active users. Select the user to check their aliases.
In our example, the primary email is Jack.Taylor@exoip.com, and the alias that we will send from is vacation@exoip.com.
Do you like to export all SMTP aliases? Read the article List all SMTP addresses with PowerShell.
How to enable Send as Alias in Office 365
To enable send from alias address in Office 365, go through these three steps.
1. Connect to Exchange Online PowerShell
Start PowerShell as administrator and Connect to Exchange Online PowerShell.
PS C:\> Connect-ExchangeOnline
2. Enable Send from Alias in Microsoft 365 tenant
Run the Set-OrganizationConfig cmdlet, including the -SendFromAliasEnabled parameter to enable Send as Alias in the Microsoft 365 tenant.
PS C:\> Set-OrganizationConfig -SendFromAliasEnabled $True
Note: Suppose you want to turn off Send from Alias feature in Office 365, change the value $True to $False.
3. Verify Send from Alias status
Check that the feature Send from Alias is enabled in the Microsoft 365 organization.
PS C:\> Get-OrganizationConfig | ft Name, SendFromAliasEnabled
Name SendFromAliasEnabled
---- --------------------
exoip365.onmicrosoft.com True
It can take 5 minutes to 1 hour before the change takes effect in the organization. So don’t immediately start to send emails using an alias address.
Send from Alias in Outlook
To send from alias address in Outlook, go through the below steps.
Start Outlook application. Click on New Email.
Click on Options > From. This will show the From field in Outlook.
Click on From > Other Email Address…
Fill in the Alias address. Click OK.
The From field will change to the alias address. Write a subject, message and send the email.
In our example, the primary email is Jack.Taylor@exoip.com, and the mail is sent from the alias vacation@exoip.com.
The email arrives and shows that the alias vacation@exoip.com sent the email.
Clicking on the reply button shows the alias address vacation@exoip.com.
Send from Alias in Outlook on the web
To send from alias in Outlook on the web, go through the below steps.
Sign in to Outlook on the web. Click on New message > … > Show From. This will show the From field in Outlook web.
Click on From > Other Email Address…
Fill in the Alias address. Then, write a subject, message and send the email.
In our example, the primary email is Jack.Taylor@exoip.com, and the mail is sent from the alias vacation@exoip.com.
The email arrives and shows that the alias vacation@exoip.com sent the email.
Clicking on the reply button shows the alias address vacation@exoip.com.
Send from Alias in Outlook mobile app
To send from alias address in Outlook mobile app, go through the steps in the article Send as Alias from Microsoft Outlook mobile app (iOS and Android).
That’s it!
Read more: Add tag to external emails in Microsoft 365 for extra security »
Conclusion
You learned how to enable send from alias in Office 365. By default, the Send from Alias feature is not enabled. Connect to Exchange Online PowerShell and turn on the feature Send from Alias. After that, inform the users that they can send from alias.
Did you enjoy this article? You may also like Remove alias from Microsoft 365 Group. Don’t forget to follow us and share this article.
Hello.
Is it possible to activate individually on mailboxes instead of globally?
Thanks
No, that’s not possible. This feature can only be enabled/disabled for the entire organization.
In my organization I have enabled “send from alias” since the first installation but it never worked on Outlook for Windows, the recipient always receives the email from the primary address. While it works on Outlook web and mobile.
I also tried different outlook versions from 2016 to the latest outlook365 update but there is no way to make it work.
When I send from my alias email, the receiver receives from my alias email but the name displayed is from my primary email.
For example when I send using my primary email, my receiver receives the following –> John Doe .
And when I send using my alias email, my receiver receives the following –> John Doe .
Is there a way that I can set a name for the alias email?
it seems there isn’t a way of changing the displayed name, can someone confirm?
Crazy, it works on OWA and Outlook-ios but when I want to send from Outlook-windows I get an reply that I’m not allowed to send as this alias.
Any idea???
Now it works. Seems that it needed about 28h to become active on MS side.
Can I use .gmail.com or the other free mailbox addresses this way?
It works sending from Alias in Outlook on the web.
But sending from Alias in Outlook (desktop) still use the principal SMTP of the account.
Updated GAL, re-added profile, different PC and user, Microsoft 365 for business Version 2210 build 16.0.15726.20202.
We have Azure AD Connect configured.
I have also tried to set the Send As right in the Security tab of the premise AD of the user, but still not work after more than 24h.
hello!
This works for me just internally. when i send an email to external recipient it arrives with the primary smtp address.
Works from Outlook desktop and web apps. But still doesn’t work from Android or IOS Outlook Apps. Alias does not appear in drop down list and there does not appear to be a a way to add it.
You must complete several tasks to make the alias visible in mobile Outlook apps. Read more in the article Send as Alias from Microsoft Outlook mobile app (iOS and Android).
Thanks for this guide. Wondering if this will this work to allow a user with delegated access to a mailbox to send mail using an alias of that mailbox? For example, User1 has email address user1@contoso.com. User1 has full access to the mailbox user2@contoso.com. The mailbox user2@contoso.com has an alias of alias@contoso.com. After following your guide above to enable Send from Alias, will User1 be able to send mail from alias@contoso.com?
Yes, that works. So user1@contoso.com can send mail from the alias address alias@contoso.com which belongs to user2@contoso.com.
That said, you need to give the user Send As permission. Otherwise, it’s not possible to send with only Full Access permission.
Is this also work on Sharepoint , Teams…inivitation ? Thanks !
hello
dont work to me…..messagge arrives with the principal SMTP of the account
:-/
Nice article and great screen shots…. After doing all that was listed in this article I sill can can not send as an alias. When I type in the alias it always reverts back to my primary address. Is there a way to force this change …..
I have checked and the FromAliasEnabled = True ?
Give it some more time. I have seen that it sometimes starts to work after 24-48 hours.
Great news…thanks for the update, we have been waiting for for so long… 🙂
Finally Microsoft! Nice feature and worked great. Thanks for the guide, Ali.
This is great! It will reduce the costs in our company. Thanks again.