Send Email from Alias in Microsoft 365

An alias email address is an additional address associated with your account that you can use to send or reply to emails and also receive emails in your primary id.

Sending mail from alias id introduced recently by Microsoft,  is one of the most helpful features in M365.

Benefit of Using Alias:-

An email alias id allows you to use it as a virtual email address that will forward incoming messages to your primary id without having to set up additional mail boxes. For using the email alias no need to pay for that id. It also allows you to send mail on behalf of the primary id but the most important thing is that the alias id does not contain any physical mailbox but we can use this id for inbound and outbound purposes. If we renamed any primary id then the previous id is automatically added as an alias of the new id.If any mail received in the previous id “(Alias id)”, that mail will not be bounced back.

Add Alias in mail id:-

M365 Admin panel > User > Active User > Open the created user > Alias > Manage user name & email > add alias id > Save

The alias option is turned off by default in the admin panel, so if you want to send mail using this feature, you will need to enable it in the Exchange Online Admin center or with PowerShell.

Enable Alias from admin panel:-

M365 admin panel > Exchange admin center > Settings > Mail flow > Check turn on sending from Alias > Save

Enable Alias with the help of powershell Command:-

Open Exchange online powershell or Windows administrator powershell and run the below command to enable the alias for sending mails.

1. Connect-ExchangeOnline

2.Set-OrganizationConfig -SendFromAliasEnabled $true

You can enable the SMTP for that particular alias id through which you want to send mail using powershell command.

Set-CASMailbox -Identity test28@infiflexglobal.com  -SmtpClientAuthenticationDisabled $true

Send Mail from Alias id from outlook web :-

Open Outlook > New Message >  Click on the three dots “ …  “> Show From > Click on from > Other email address > put the alias address from which you want to send mail >give the recipient id and click on send.

Send Mail on behalf of Group and Group Alias:-

Step 1: Create a group [Distribution list]:-

M365 admin > Teams & Group > Add group >Distribution list > Next >Give the group Name >Next > Put group mail id > If want to public group check “Allow people outside of my organization to send email to this distribution group” >Next > Create Group

After creating the group, you need to add the Owner and member in that particular group.

Step 2:Give send mail as permission to the member:-

M365 Admin panel > Exchange Admin > Classic Exchange admin center > Groups >open the created group > Group delegation > Send as> Click “+” > add the member id who want to send mail on behalf of group > Save

If you want to add another mail id inside the group and give the permission to send mail behalf of this group.

M365 Admin panel > Exchange Admin > Classic Exchange admin center > Groups >open the created group > Email option > Click “+” > Put email address > check “ Make this the reply address” > ok > Save

Send mail on behalf of group mail id or group alias id:-

For sending mail on behalf of group id or the group alias id needs to follow the above user end procedure in outlook web.