[MDO] Add a new tool to resend failed emails

M365/MDO/ResendFailedMail.ps1

@@ -0,0 +1,319 @@
+# Copyright (c) Microsoft Corporation.
+# Licensed under the MIT License.
+
+# Get-MgContext
+#Requires -Modules Microsoft.Graph.Authentication
+# Get-MgUserMessage
+#Requires -Modules Microsoft.Graph.Mail
+# Get-EXOMailbox Get-ConnectionInformation Get-MessageTrace
+#Requires -Modules ExchangeOnlineManagement -Version 3.0.0
+
+# How to connect:
+# $ClientSecretCredential = Get-Credential -Credential "[YOUR APP ID HERE]"
+# Connect-MgGraph -TenantId ""[YOUR TENANT ID HERE]"" -ClientSecretCredential $ClientSecretCredential -NoWelcome
+
+<#
+.SYNOPSIS
+Re-sends email in Failed state from Exchange Online to the originally intended recipients with parameters to target the emails to resend.
+
+.DESCRIPTION
+This script re-sends all Failed email from the past day, by default, or allows you to use the following parameters to target which emails to resend.
+
+.PARAMETER SenderAddress
+    Filter emails based on the sender's address.
+.PARAMETER RecipientAddress
+    Filter emails based on the recipient's address.
+.PARAMETER Subject
+    Filter emails based on the email Subject.
+.PARAMETER MessageID
+    Filter emails based on the MessageId address. You must put the MessageId in double quotes.
+.PARAMETER Days
+    Resend emails that failed within the past X number of days. Default is 1 day.
+.PARAMETER Force
+    Sends emails without confirmation prompt.
+.PARAMETER IncludeDuplicates
+    Will resend all emails with the same Message Id.
+.PARAMETER SkipConnectionCheck
+    Skips connection check for Graph and Exchange Online.
+.PARAMETER SkipVersionCheck
+    Skips the version check of the script.
+.PARAMETER ScriptUpdateOnly
+    Just updates script version to latest one.
+
+.EXAMPLE
+	.\ResendFailedMail.ps1
+	To resend all Failed email from the past day.
+
+.EXAMPLE
+	.\ResendFailedMail.ps1 -SenderAddress [email protected] -RecipientAddress  [email protected] -Days 7
+	To resend Failed email from specific sender, recipient, and specified number of days.
+
+.EXAMPLE
+	.\ResendFailedMail.ps1 -Force -SenderAddress [email protected] -Days 5
+	To resend Failed email from a specific sender for the past 5 days without a confirmation prompt.
+#>
+
+[CmdletBinding(DefaultParameterSetName = 'ResendCopyFailed', SupportsShouldProcess = $true, ConfirmImpact = 'High')]
+param(
+    [Parameter(Mandatory = $false, ParameterSetName = "ResendCopyFailed")]
+    [Parameter(Mandatory = $false, ParameterSetName = "ResendCopyFailedDays")]
+    [string[]]$SenderAddress,
+    [Parameter(Mandatory = $false, ParameterSetName = "ResendCopyFailed")]
+    [Parameter(Mandatory = $false, ParameterSetName = "ResendCopyFailedDays")]
+    [string[]]$Subject,
+    [Parameter(Mandatory = $false, ParameterSetName = "ResendCopyFailed")]
+    [Parameter(Mandatory = $false, ParameterSetName = "ResendCopyFailedDays")]
+    [string[]]$RecipientAddress ,
+    [Parameter(Mandatory = $false, ParameterSetName = "ResendCopyFailed")]
+    [Parameter(Mandatory = $false, ParameterSetName = "ResendCopyFailedDays")]
+    [string[]]$MessageId,
+    [Parameter(Mandatory = $false, ParameterSetName = "ResendCopyFailed")]
+    [Parameter(Mandatory = $false, ParameterSetName = "ResendCopyFailedDays")]
+    [switch]$IncludeDuplicates,
+    [Parameter(Mandatory = $false, ParameterSetName = "ResendCopyFailed")]
+    [Parameter(Mandatory = $false, ParameterSetName = "ResendCopyFailedDays")]
+    [switch]$Force,
+    [Parameter(Mandatory = $false, ParameterSetName = "ResendCopyFailed")]
+    [DateTime]$StartDate,
+    [Parameter(Mandatory = $false, ParameterSetName = "ResendCopyFailed")]
+    [DateTime]$EndDate,
+    [Parameter(Mandatory = $false, ParameterSetName = "ResendCopyFailedDays")]
+    [ValidateRange(1, 10)]
+    [Int16]$Days,
+    [Parameter(Mandatory = $false, ParameterSetName = "ResendCopyFailed")]
+    [Parameter(Mandatory = $false, ParameterSetName = "ResendCopyFailedDays")]
+    [switch]$SkipConnectionCheck,
+    [Parameter(Mandatory = $false, ParameterSetName = "ResendCopyFailed")]
+    [Parameter(Mandatory = $false, ParameterSetName = "ResendCopyFailedDays")]
+    [switch]$SkipVersionCheck,
+    [Parameter(Mandatory = $true, ParameterSetName = "ScriptUpdateOnly")]
+    [switch]$ScriptUpdateOnly
+)
+
+$Script:DualLoggingEnabled = $true
+. $PSScriptRoot\..\..\Shared\GenericScriptStartLogging.ps1
+
+$versionsUrl = "https://aka.ms/ResendFailedMail-VersionsURL"
+. $PSScriptRoot\..\..\Shared\ScriptUpdateFunctions\GenericScriptUpdate.ps1
+
+$recipientCache = @{}
+
+Write-Verbose "Url to check for new versions of the script is: $versionsUrl"
+
+function Test-GraphContext {
+    [OutputType([bool])]
+    param (
+        [Parameter(Mandatory = $true)]
+        [string[]]$Scopes,
+        [Parameter(Mandatory = $true)]
+        [string[]]$ExpectedScopes
+    )
+
+    $validScope = $true
+    foreach ($expectedScope in $ExpectedScopes) {
+        if ($Scopes -contains $expectedScope) {
+            Write-Verbose "Scopes $expectedScope is present."
+        } else {
+            Write-Host "The following scope is missing: $expectedScope" -ForegroundColor Red
+            $validScope = $false
+        }
+    }
+    return $validScope
+}
+
+if (-not $SkipConnectionCheck) {
+    #Validate EXO PS Connection
+    $exoConnection = $null
+    try {
+        $exoConnection = Get-ConnectionInformation -ErrorAction Stop
+    } catch {
+        Write-Host "Error checking EXO connection:`n$_" -ForegroundColor Red
+        Write-Host "Verify that you have ExchangeOnlineManagement module installed." -ForegroundColor Yellow
+        Write-Host "You need a connection to Exchange Online; you can use:" -ForegroundColor Yellow
+        Write-Host "Connect-ExchangeOnline" -ForegroundColor Yellow
+        Write-Host "Exchange Online Powershell Module is required." -ForegroundColor Red
+        Write-Verbose "$_"
+        exit
+    }
+    if ($null -eq $exoConnection) {
+        Write-Host "Not connected to EXO" -ForegroundColor Red
+        Write-Host "You need a connection to Exchange Online; you can use:" -ForegroundColor Yellow
+        Write-Host "Connect-ExchangeOnline" -ForegroundColor Yellow
+        Write-Host "Exchange Online Powershell Module is required." -ForegroundColor Red
+        exit
+    } elseif ($exoConnection.count -eq 1) {
+        Write-Host " "
+        Write-Host "Connected to EXO"
+        Write-Host "Session details"
+        Write-Host "Tenant Id: $($exoConnection.TenantId)"
+        Write-Host "User: $($exoConnection.UserPrincipalName)"
+    } else {
+        Write-Host "You have more than one EXO session. Please use just one session." -ForegroundColor Red
+        exit
+    }
+
+    #Validate Graph is connected
+    $graphConnection = $null
+    Write-Host " "
+    try {
+        $graphConnection = Get-MgContext -ErrorAction Stop
+    } catch {
+        Write-Host "Error checking Graph connection:`n$_" -ForegroundColor Red
+        Write-Host "Verify that you have Microsoft.Graph.Mail and Microsoft.Graph.Users.Actions modules installed and loaded." -ForegroundColor Yellow
+        Write-Host "You could use:" -ForegroundColor Yellow
+        Write-Host "`t`$ClientSecretCredential = Get-Credential -Credential ""[YOUR APP ID HERE]""" -ForegroundColor Yellow
+        Write-Host "`t# Enter client_secret in the password prompt." -ForegroundColor Yellow
+        Write-Host "`tConnect-MgGraph -TenantId ""[YOUR TENANT ID HERE]"" -ClientSecretCredential `$ClientSecretCredential -NoWelcome" -ForegroundColor Yellow
+        Write-Verbose "$_"
+        exit
+    }
+    if ($null -eq $graphConnection) {
+        Write-Host "Not connected to Graph" -ForegroundColor Red
+        Write-Host "Verify that you have Microsoft.Graph.Mail and Microsoft.Graph.Users.Actions modules installed and loaded." -ForegroundColor Yellow
+        Write-Host "You could use:" -ForegroundColor Yellow
+        Write-Host "`t`$ClientSecretCredential = Get-Credential -Credential ""[YOUR APP ID HERE]""" -ForegroundColor Yellow
+        Write-Host "`t# Enter client_secret in the password prompt." -ForegroundColor Yellow
+        Write-Host "`tConnect-MgGraph -TenantId ""[YOUR TENANT ID HERE]"" -ClientSecretCredential `$ClientSecretCredential -NoWelcome" -ForegroundColor Yellow
+        exit
+    } elseif ($graphConnection.count -eq 1) {
+        $expectedScopes = 'Mail.Read', 'Mail.Send'
+        if (Test-GraphContext -Scopes $graphConnection.Scopes -ExpectedScopes $expectedScopes) {
+            Write-Host "Connected to Graph"
+            Write-Host "Session details"
+            Write-Host "TenantID: $(($graphConnection).TenantId)"
+            Write-Host "AuthType: $(($graphConnection).AuthType)"
+        } else {
+            Write-Host "We cannot continue without Graph Powershell session without Expected Scopes." -ForegroundColor Red
+            Write-Host "Verify that you have Microsoft.Graph.Mail and Microsoft.Graph.Users.Actions modules installed and loaded." -ForegroundColor Yellow
+            Write-Host "You could use:" -ForegroundColor Yellow
+            Write-Host "`t`$ClientSecretCredential = Get-Credential -Credential ""[YOUR APP ID HERE]""" -ForegroundColor Yellow
+            Write-Host "`t# Enter client_secret in the password prompt." -ForegroundColor Yellow
+            Write-Host "`tConnect-MgGraph -TenantId ""[YOUR TENANT ID HERE]"" -ClientSecretCredential `$ClientSecretCredential -NoWelcome" -ForegroundColor Yellow
+            exit
+        }
+    } else {
+        Write-Host "You have more than one Graph sessions. Please use just one session." -ForegroundColor Red
+        exit
+    }
+    if (($graphConnection.TenantId) -ne ($exoConnection.TenantId) ) {
+        Write-Host "`nThe Tenant Id from Graph and EXO are different. Please use the same tenant." -ForegroundColor Red
+        exit
+    }
+}
+
+if ($PsCmdlet.ParameterSetName -eq 'ResendCopyFailedDays') {
+    $StartDate = (Get-Date).AddDays(-$Days)
+    Write-Verbose "StartDate: $StartDate"
+    $EndDate = Get-Date
+    Write-Verbose "EndDate: $EndDate"
+}
+
+$traceParams = @{
+    Status = "Failed"
+}
+
+if ($StartDate) { $traceParams["StartDate"] = $StartDate }
+if ($EndDate) { $traceParams["EndDate"] = $EndDate }
+if ($RecipientAddress ) { $traceParams["RecipientAddress"] = $RecipientAddress }
+if ($SenderAddress) { $traceParams["SenderAddress"] = $SenderAddress }
+if ($MessageId) { $traceParams["MessageId"] = $MessageId }
+
+try {
+    [array]$failedMessages = Get-MessageTrace @traceParams -ErrorAction Stop
+} catch {
+    Write-Host "Error: $_.Exception.Message" -ForegroundColor Red
+    exit
+}
+
+if ($failedMessages.count -ge 1000) {
+    Write-Host "We get more than 1000 messages, please limit your search." -ForegroundColor Red
+    exit
+}
+
+if (-not $IncludeDuplicates) {
+    [array]$failedMessages = $failedMessages | Sort-Object MessageId -Unique
+}
+
+$verifiedAcceptedSenderMessages = New-Object System.Collections.Generic.List[object]
+$count = 0
+$totalMessages = $failedMessages.Count
+foreach ($failedMessage in $failedMessages) {
+    $count++
+    Write-Progress -Activity "Checking Progress" -Status "$count of $totalMessages" -PercentComplete ($count / $totalMessages * 100) -CurrentOperation "Checking message $($failedMessage.MessageId) - Subject: $($failedMessage.Subject)"
+    Write-Verbose "Checking $($failedMessage.SenderAddress)"
+    $tempAddress = $null
+    if ($recipientCache.ContainsKey($failedMessage.SenderAddress)) {
+        Write-Verbose "RecipientAddress  $($failedMessage.SenderAddress) found in cache"
+        if ($recipientCache[$failedMessage.SenderAddress]) {
+            $verifiedAcceptedSenderMessages.Add($failedMessage)
+        } else {
+            Write-Verbose "Sender $($failedMessage.SenderAddress) is not a recipient in this tenant."
+            Write-Verbose "Discarded $($failedMessage.MessageId) - Subject: $($failedMessage.Subject)"
+        }
+    } else {
+        try {
+            $tempAddress = Get-EXOMailbox $failedMessage.SenderAddress -ErrorAction Stop
+            if ($null -eq $tempAddress) {
+                Write-Verbose "Sender $($failedMessage.SenderAddress) is not a recipient in this tenant."
+                Write-Verbose "Discarded $($failedMessage.MessageId) - Subject: $($failedMessage.Subject)"
+                $recipientCache[$failedMessage.SenderAddress] = $false
+            } else {
+                Write-Verbose "Added to cache Recipient $($failedMessage.SenderAddress) with Id $($failedMessage.SenderAddress)"
+                $recipientCache[$failedMessage.SenderAddress] = $true
+                Write-Verbose "Verified $($failedMessage.SenderAddress)"
+                $verifiedAcceptedSenderMessages.Add($failedMessage)
+            }
+        } catch {
+            Write-Verbose "Error getting Sender Address $($failedMessage.SenderAddress)"
+            Write-Verbose "Discarded $($failedMessage.MessageId) - Subject: $($failedMessage.Subject)"
+            $recipientCache[$failedMessage.SenderAddress] = $false
+            Write-Verbose "$_"
+        }
+    }
+}
+
+$totalMessages = $verifiedAcceptedSenderMessages.Count
+if ($totalMessages -gt 0) {
+    if (-not $Force) {
+        Write-Host "`nWe are going to resend the following messages:"
+        Write-Host ($verifiedAcceptedSenderMessages | Format-Table -AutoSize Received, MessageId, SenderAddress, RecipientAddress, Subject | Out-String)
+        Write-Host "Total number of messages: $totalMessages`n"
+    }
+
+    if ($Force -or $PSCmdlet.ShouldContinue("Are you sure you want to do it?", "Resend messages")) {
+        $count = 0
+        $resendCount = 0
+        foreach ( $failedMessage in $verifiedAcceptedSenderMessages ) {
+            $count++
+            Write-Progress -Activity "Resending Progress" -Status "$count of $totalMessages" -PercentComplete ($count / $totalMessages * 100) -CurrentOperation "Resending message $($failedMessage.MessageId) - Subject: $($failedMessage.Subject)"
+            try {
+                $fullMessage = $null
+                $fullMessage = Get-MgUserMessage -UserId $failedMessage.SenderAddress -Filter "InternetMessageId eq '$($failedMessage.MessageId)'" -ExpandProperty Attachments -ErrorAction Stop | Sort-Object ReceivedDateTime | Select-Object -First 1
+            } catch {
+                Write-Host "Error getting message $($failedMessage.MessageId) - Subject: $($failedMessage.Subject)" -ForegroundColor Red
+                Write-Verbose "$_"
+                continue
+            }
+            if ($fullMessage.Count -eq 0) {
+                Write-Host "Message not found for $($failedMessage.MessageId)" -ForegroundColor Yellow
+            } else {
+                Write-Verbose "Resending message $($failedMessage.MessageId) - Subject: $($fullMessage.Subject)"
+                try {
+                    Send-MgUserMessage -UserId $failedMessage.SenderAddress -MessageId $fullMessage.Id
+                    Write-Host "Resent Message: $($failedMessage.MessageId) - Subject: $($fullMessage.Subject)"
+                    $resendCount++
+                } catch {
+                    Write-Host "Error resending message $($failedMessage.MessageId) - Subject: $($fullMessage.Subject)" -ForegroundColor Red
+                    Write-Verbose "$_"
+                }
+            }
+        }
+        Write-Host "Summary"
+        Write-Host "Total Successful Resent: $resendCount"
+        if ($totalMessages - $resendCount -gt 0) {
+            Write-Host "Total Unsuccessful Resent: $($totalMessages-$resendCount)" -ForegroundColor Yellow
+        }
+    }
+} else {
+    Write-Host "No messages found" -ForegroundColor Yellow
+}