By default in Office 365, when a new Public Folder is created it gets assigned an email address as follows:
<publicfoldername>@<companyURL>.onmicrosoft.com
So what do we do if we want the default reply address to look like the rest of our company emails?
<publicfoldername>@<companyURL>.com
This requires us to connect to the Office 365 server and make a change to Email Address Policy. To do this we must connect using Powershell.
Note: You should have already created the public folder at this point
Step 1: Connecting to Office 365 with Powershell
This requires us to connect to the Office 365 server and make a change to Email Address Policy. To do this we must run the following commands.
Note: You should have already created the public folder at this point
Open Powershell.
PS C:>$UserCredential = Get-Credential
This will prompt for the admin accounts login details.
Eg: admin@<companyURL>.onmicrosoft.com (Unless another user has been assigned admin)
Step 2: Create a Session
PS C:> $Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://outlook.office365.com/powershell-liveid/ -Credential $UserCredential -Authentication Basic –AllowRedirection PS C:> Import-PSSession $Session
We should now have established a connection to the Exchange server. Now we need to run the command that will disable the Email Address Policy.
Step 3: Disable Email Address Policy
PS C:> Set-MailPublicFolder -Identity "\<foldername>" -EmailAddressPolicyEnabled $False
Note: Don’t forget to change the folder name to the public folder in which you are removing the Email Address Policy
Step 4: Kill Session with Server
Once you have disabled the policy it is important to kill the session with the Exchange server. To this we run the following command.
PS C:> Remove-PSSession $Session
Step 5: Adding a new reply address in Exchange Control Panel (ECP)
Login into Office 365 and go to Outlook settings.
Go to public folders > public folders
Click on a public folder (next to the link, not on the link) to select it then click the "Edit" link above the Public Folders list.
Step 6: Make this the Reply Address
Now because of the Powershell command we run earlier we can tick the option to make this our reply address.