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Error when trying to resolve winmail.dat problem in Office 365

Posted on 2016-08-24
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Last Modified: 2016-08-30
Hi,

I am getting the attached error when trying to run through the following fix for Office 365 emails.

Open Powershell as an Admin

Set-ExecutionPolicy RemoteSigned

$UserCredential = Get-Credential

(input office 365 admin login details)


$Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://outlook.office365.com/powershell-liveid/ -Credential $UserCredential -Authentication Basic -AllowRedirection


Import-PSSession $Session

Set-RemoteDomain Default -TNEFEnabled $false

To confirm that the setting change was applied use:

Get-RemoteDomain |fl

In the returned results, look for:  TNEFEnabled:  False



The above fix is intented to resolve the winmail.dat problem that happens with some recipients when sending to btinernet accounts.

Is it possible someone would be able to shed any light on what this error means please?

Any help is appreciated.

Kind regards,
Systemagic Support.
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Question by:systemagic
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Expert Comment

by:Vasil Michev (MVP)
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I dont see any attachment, maybe try uploading it again?
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Author Comment

by:systemagic
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Apologies, can you now see the attachment?
Capture123.PNG
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Expert Comment

by:Vasil Michev (MVP)
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Yup. It seems that the user you are connected with doesnt have the necessary permissions. Make sure you run it with a user that has at least the Exchange admin role.
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Author Comment

by:systemagic
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Thank you for that Vasil, I have had a look in the Exchange admin center and can't find anywhere to assign the Exchange admin role to that user.

Do you know where I need to be looking in there please?

Thanks for your help.
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Accepted Solution

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Vasil Michev (MVP) earned 500 total points
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Go to the O365 portal -> Admin -> Users -> select the users -> Roles -> assign the Exchange admin role (or Global admin). Or simply run the cmdlet with account that already has the permissions.
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Author Closing Comment

by:systemagic
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Thanks for your help, believe this has resolved it.
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