Connect to ExchangeOnlineManagement powershell module returns error

Question

Script is called from Workato, and runs from a virtual machine that has exchange online 3.6.0. This was working up until last week.

UnAuthorized

At C:\Program

Files\WindowsPowerShell\Modules\ExchangeOnlineManagement\3.6.0\netFramework\ExchangeOnlineManagement.psm1:766 char:21

•                 throw $_.Exception;
  

•                 ~~~~~~~~~~~~~~~~~~
  

  • CategoryInfo : OperationStopped: (:) [], UnauthorizedAccessException
  • FullyQualifiedErrorId : UnAuthorized

When updating to exchange module 3.7.2 I see this error:

Error Acquiring Token: Unknown Status: Unexpected Error: 0xffffffff80070520 Context: (pii) Tag: 0x21420087 (error code -2147023584) (internal error code 557973639) Unknown Status: Unexpected Error: 0xffffffff80070520 Context: (pii) Tag: 0x21420087 (error code -2147023584) (internal error code 557973639) At C:\Program Files\WindowsPowerShell\Modules\ExchangeOnlineManagement\3.7.2\netFramework\ExchangeOnlineManagement.psm1:754 char:21 + throw $_.Exception.InnerException; + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : OperationStopped: (:) [], MsalServiceException + FullyQualifiedErrorId : Unknown Status: Unexpected Error: 0xffffffff80070520 Context: (pii) Tag: 0x21420087 (error code -2147023584) (internal error code 557973639)

Answer 1

Dear Team,

You will need to run the Enable to TLS 1.2

[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12

.

Here is the script:

# Set TLS 1.2
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12

# Import module
Import-Module ExchangeOnlineManagement -RequiredVersion 3.6.0

# Connect to Exchange Online
try {
    Connect-ExchangeOnline -AppId "<ClientID>" -CertificateThumbprint "<Thumbprint>" -Organization "<Tenant>.onmicrosoft.com" -Verbose
    Write-Host "Connected successfully!"
    # Test a command
    Get-EXOMailbox -ResultSize 1
} catch {
    Write-Host "Error: $_"
} finally {
    Disconnect-ExchangeOnline -Confirm:$false
}