OutlookAPI.ps1
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# Outlook REST Api functions <# .SYNOPSIS Sends mail message using Outlook REST API .DESCRIPTION Sends mail using Outlook REST API using the account of given credentials. Message MUST be html (or plaintext). .Example PS C:\>$At=Get-AADIntAccessTokenForEXO PS C:\>Send-AADIntOutlookMessage -AccessToken $At -Recipient someone@company.com -Subject "An email" -Message "This is a message!" #> function Send-OutlookMessage { Param( [Parameter(Mandatory=$True)] [String]$AccessToken, [Parameter(Mandatory=$True)] [String]$Recipient, [Parameter(Mandatory=$True)] [String]$Subject, [Parameter(Mandatory=$True)] [String]$Message, [Parameter(Mandatory=$False)] [Switch]$SaveToSentItems ) Process { $Request=@" { "Message": { "Subject": $(Escape-StringToJson $Subject), "Body": { "ContentType": "HTML", "Content": $(Escape-StringToJson $Message) }, "ToRecipients": [ { "EmailAddress": { "Address": "$Recipient" } } ] }, "SaveToSentItems": "$(if($SaveToSentItems){"true"}else{"false"})" } "@ $Cmd="me/sendmail" # Convert to UTF-8 bytes $Request_bytes = [system.Text.Encoding]::UTF8.getBytes($Request) Call-OutlookAPI -AccessToken $AccessToken -Command $Cmd -Method Post -Request $Request_bytes } } # Returns Outlook activities, a.k.a. the secrect forensics api # MS has blocked the API but here it is anyways # Apr 10th 2019 function Get-OutlookActivities { Param( [Parameter(Mandatory=$True)] [String]$AccessToken ) Process { $Cmd="me/Activities" Call-OutlookAPI -AccessToken $AccessToken -Command $Cmd -Method Get -Api v1.0 } } |