Exchange Online Powershell failed to connect when using MFA

Bastian W. - I didn't find a way to leave a comment therefore I am using this reply option to leave you a thank you message. This workaround has been a blessing. Microsoft's articles didn't work (nor from many other sites I researched and tested). Thanks!

Unfortionally the the Exchange Online Remote PowerShell Module is not supported in PowerShell Core (macOS, Linux, or Windows Nano Server) see here (https://docs.microsoft.com/en-us/powershell/exchange/exchange-online/connect-to-exchange-online-powershell/mfa-connect-to-exchange-online-powershell?view=exchange-ps). As a workaround, you can install the module on a computer that'

If you use MFA (multi factor authentication) you might very soon recognize that the normal power shell connection is not working (e.g. you might get an "access denied") error:

The full error message is:

New-PSSession : [outlook.office365.com] Connecting to remote server outlook.office365.com failed with the following error message :
[ClientAccessServer=VI1PR08CA0018,BackEndServer=,RequestId=1c6b263f-08cf-1234-1234-123456789091,TimeStamp=1/12/2018
2:46:41 PM] Access Denied For more information, see the about_Remote_Troubleshooting Help topic.
At line:1 char:12
+ $Session = New-PSSession -ConfigurationName Microsoft.Exchange -Conne ...
+            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo          : OpenError: (System.Manageme....RemoteRunspace:RemoteRunspace) [New-PSSession], PSRemotingTransportException
+ FullyQualifiedErrorId : -2144108477,PSSessionOpenFailed

To use PowerShell with MFA you need to perform the following steps:

1.) Login to the Exchange Online ECP (https://outlook.office365.com/ecp) and switch to the Hybrid section. There is a 2nd option, which offers "Exchange Online PowerShell Module supports multi-factor authentication" which needs to be installed

2.) Once installed you can use the following PowerShell commands to connect to Exchange Online via PowerShell using MFA:

$office365UserPrincipalName = "admin@emea.contoso.com"
$PSExoPowershellModuleRoot = (Get-ChildItem -Path $env:userprofile -Filter CreateExoPSSession.ps1 -Recurse -ErrorAction SilentlyContinue -Force | Select -Last 1).DirectoryName
$ExoPowershellModule = "Microsoft.Exchange.Management.ExoPowershellModule.dll";
$ModulePath = [System.IO.Path]::Combine($PSExoPowershellModuleRoot, $ExoPowershellModule);

Import-Module $ModulePath;

$Office365PSSession = New-ExoPSSession -UserPrincipalName $office365UserPrincipalName -ConnectionUri "https://outlook.office365.com/powershell-liveid/"

Import-PSSession $Office365PSSession

More info´s can be found here:

- Connect to Exchange Online PowerShell using multi-factor authentication

- Using PowerShell ISE to connect to Exchange Online when MFA is enabled

Kommentare (10)

Michael

1. vor 2 Jahren
2. #432

This comment was minimized by the moderator on the site

Thanks, very useful

1. Antworten

Bastian W.    Michael

1. vor 1 Jahr
2. #532

This comment was minimized by the moderator on the site

you are welcome

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Ramkar    Bastian W.

1. vor 4 Monaten
2. #795

This comment was minimized by the moderator on the site

Bastian W. - I didn't find a way to leave a comment therefore I am using this reply option to leave you a thank you message. This workaround has been a blessing. Microsoft's articles didn't work (nor from many other sites I researched and...

Bastian W. - I didn't find a way to leave a comment therefore I am using this reply option to leave you a thank you message. This workaround has been a blessing. Microsoft's articles didn't work (nor from many other sites I researched and tested). Thanks!

Weiterlesen

1. Antworten

Bastian W.    Ramkar

1. vor 4 Monaten
2. #796

This comment was minimized by the moderator on the site

you are welcome

1. Antworten

Dave Walker

1. vor 1 Jahr
2. #476

This comment was minimized by the moderator on the site

Works like a charm. Thank you very much.

1. Antworten

Bastian W.    Dave Walker

1. vor 1 Jahr
2. #531

This comment was minimized by the moderator on the site

You are welcome :-)

1. Antworten

wade

1. vor 1 Jahr
2. #529

This comment was minimized by the moderator on the site

Great! Thank you very much.....Works great...

1. Antworten

Bastian W.    wade

1. vor 1 Jahr
2. #530

This comment was minimized by the moderator on the site

nice to hear it was helpful :-)

1. Antworten

Yash Soni

1. vor 9 Monaten
2. #765

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How to make it work on Linux?? (MFA exchange online connection using powershell).

1. Antworten

Bastian W.    Yash Soni

1. vor 9 Monaten
2. #768

This comment was minimized by the moderator on the site

Unfortionally the the Exchange Online Remote PowerShell Module is not supported in PowerShell Core (macOS, Linux, or Windows Nano Server) see here (https://docs.microsoft.com/en-us/powershell/exchange/exchange-online/connect-to-exchange-online-pow...

Unfortionally the the Exchange Online Remote PowerShell Module is not supported in PowerShell Core (macOS, Linux, or Windows Nano Server) see here (https://docs.microsoft.com/en-us/powershell/exchange/exchange-online/connect-to-exchange-online-powershell/mfa-connect-to-exchange-online-powershell?view=exchange-ps). As a workaround, you can install the module on a computer that's running a supported version of Windows (physical or virtual), and use remote desktop software to connect.

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