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Get-TeamsChannelEmailaddresses.ps1
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Get-TeamsChannelEmailaddresses.ps1
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###############################################################################
# Get Emailadresses from Microsoft TeamsChannels
# 25.04.2022 V0.1 Initial Version - Andres Bohren
###############################################################################
#Azure AD Role
#-TeamsAdministrator
#GraphPermissions
#-Channel.ReadBasic.All
#-ChannelSettings.Read.All
#-Group.Read.All
<#
#AzureAD App Authentication (OAuth2)
$APPID = "05be746b-7e2f-4e57-b99d-e793a7535d08"
$CertificateThumbprint = "4F1C474F862679EC35650824F73903041E1E5742" #O365Powershell2.cer
$TenantID = "icewolfch.onmicrosoft.com"
Connect-MgGraph -TenantId $TenantID -AppId $APPID -CertificateThumbprint $CertificateThumbprint
#>
#Interactive Login
Write-Host "Connect-MgGraph"
Connect-MgGraph -Scopes Channel.ReadBasic.All, ChannelSettings.Read.All, ChannelSettings.ReadWrite.All
#Get-Team
Write-Host "Connect-MicrosoftTeams"
Connect-MicrosoftTeams
Write-Host "Getting Teams..."
$TeamsArray = Get-Team
$TeamsCount = $TeamsArray.count
Write-Host "Teams found: $TeamsCount"
#Create CSV File
If ($PSScriptRoot -eq "")
{
$Path = [System.Environment]::CurrentDirectory + "\TeamsChannelEmail.csv"
} else {
$Path = $PSScriptRoot + "\TeamsChannelEmail.csv"
}
#Check if File Exist and delete if exists
If (Test-Path -Path $Path)
{
Remove-Item -Path $Path -Confirm:$false
}
#CreateCSVHeader
Add-Content -Path $Path "TeamsObjectId;TeamsDisplayName;ChannelDisplayName;ChannelEmail"
#Loop through Teams
$Int = 0
Foreach ($Team in $TeamsArray)
{
$Int = $Int + 1
$DisplayName = $Team.DisplayName
$GroupId = $Team.GroupId
Write-Host "Working on: $DisplayName [$Int/$TeamsCount]" -ForeGroundColor Green
#Loop through Channels
$Channels = Get-MgTeamChannel -TeamId $GroupId
Foreach ($Channel in $Channels)
{
$ChannelDisplayName = $Channel.DisplayName
$ChannelEmail = $Channel.Email
If ($ChannelEmail -ne "")
{
#Email found
Write-Host "$ChannelDisplayName > $ChannelEmail"
#Add to CSV File
Add-Content -Path $Path "$GroupId;$DisplayName;$ChannelDisplayName;$ChannelEmail"
}
}
}