Office 365

This is due to SMTP client Auth flag not allowing this type of connection. $UserCredential = Get-Credential $Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://ps.outlook.com/powershell-liveid?DelegatedOrg=<[email protected]> -Credential $UserCredential -Authentication Basic -AllowRedirection Import-PSSession $Session -DisableNameChecking Set-TransportConfig -SmtpClientAuthenticationDisabled $false