Add Set-CIPPAlwaysShowFrom function

Author: kris6673

Modules/CIPPCore/Public/Set-CIPPAlwaysShowFrom.ps1

@@ -0,0 +1,88 @@
+
+Function Set-CIPPAlwaysShowFrom {
+    <#
+    .SYNOPSIS
+        Sets the "Always Show From" property for a user or all users in a tenant.
+
+    .DESCRIPTION
+        The Set-CIPPAlwaysShowFrom function is used to set the "Always Show From" property for a specified user or all users in a specified tenant. The "Always Show From" property determines whether the from field is always shown in Outlook.
+
+    .PARAMETER UserID
+        Specifies the user ID for which to set the "Always Show From" property. This parameter is mandatory unless the RunOnAllUsersInTenant switch is used.
+
+    .PARAMETER TenantFilter
+        Specifies the tenant for which to set the "Always Show From" property.
+
+    .PARAMETER APIName
+        Specifies the name of the API. The default value is "Always Show From".
+
+    .PARAMETER ExecutingUser
+        Specifies the user who is executing the function.
+
+    .PARAMETER AlwaysShowFrom
+        Specifies whether to set the "Always Show From" property to true or false.
+
+    .PARAMETER RunOnAllUsersInTenant
+        If this switch is present, the function will set the "Always Show From" property for all users in the specified tenant.
+
+    .EXAMPLE
+        Set-CIPPAlwaysShowFrom -UserID "john.doe@example.com" -TenantFilter "example.com" -AlwaysShowFrom $true
+        Sets the "Always Show From" property to true for the user "john.doe@example.com" in the "example.com" tenant.
+
+    .EXAMPLE
+        Set-CIPPAlwaysShowFrom -TenantFilter "example.com" -AlwaysShowFrom $true -RunOnAllUsersInTenant
+        Sets the "Always Show From" property to true for all users in the "example.com" tenant.
+    #>
+    [CmdletBinding(DefaultParameterSetName = 'User')]
+    param (
+        [Parameter(Mandatory = $true, ParameterSetName = 'User')]
+        [Parameter(Mandatory = $false, ParameterSetName = 'AllUsers')]
+        [Alias('Username')][string]$UserID,
+
+        [Parameter(Mandatory = $true, ParameterSetName = 'User')]
+        [Parameter(Mandatory = $true, ParameterSetName = 'AllUsers')]
+        $TenantFilter,
+
+        [Parameter(ParameterSetName = 'User')]
+        [Parameter(ParameterSetName = 'AllUsers')]
+        $APIName = 'Always Show From',
+
+        [Parameter(ParameterSetName = 'User')]
+        [Parameter(ParameterSetName = 'AllUsers')]
+        $ExecutingUser,
+
+        [Parameter(Mandatory = $true, ParameterSetName = 'User')]
+        [Parameter(Mandatory = $true, ParameterSetName = 'AllUsers')]
+        [bool]$AlwaysShowFrom,
+
+        [Parameter(ParameterSetName = 'AllUsers')]
+        [switch]$RunOnAllUsersInTenant
+    )
+
+
+    if ($RunOnAllUsersInTenant.IsPresent -eq $true) {
+        $AllUsers = New-ExoRequest -tenantid $TenantFilter -cmdlet 'Get-Mailbox' -cmdParams @{ ResultSize = 'Unlimited' }
+        Write-LogMessage -user $ExecutingUser -API $APIName -message "Setting Always Show From to $AlwaysShowFrom for all $($AllUsers.Count) users in $TenantFilter" -Sev 'Info' -tenant $TenantFilter
+        $ErrorCount = 0
+        foreach ($User in $AllUsers) {
+            try {
+                $null = New-ExoRequest -tenantid $TenantFilter -cmdlet 'Set-MailboxMessageConfiguration' -anchor $User.UserPrincipalName -cmdParams @{AlwaysShowFrom = $AlwaysShowFrom; Identity = $User.UserPrincipalName }
+                Write-Host "Set Always Show From to $AlwaysShowFrom for $($User.UserPrincipalName)"
+            } catch {
+                $ErrorCount++
+            }
+        }
+        Write-LogMessage -user $ExecutingUser -API $APIName -message "Set Always Show From to $AlwaysShowFrom for $($AllUsers.Count - $ErrorCount) users in $TenantFilter" -Sev 'Info' -tenant $TenantFilter
+        return "Set Always Show From to $AlwaysShowFrom for $($AllUsers.Count - $ErrorCount) users in $TenantFilter"
+    } else {
+        try {
+            $null = New-ExoRequest -tenantid $TenantFilter -cmdlet 'Set-MailboxMessageConfiguration' -anchor $UserID -cmdParams @{AlwaysShowFrom = $AlwaysShowFrom; Identity = $UserID }
+            Write-LogMessage -user $ExecutingUser -API $APIName -message "Set Always Show From to $AlwaysShowFrom for $UserID" -Sev 'Info' -tenant $TenantFilter
+        } catch {
+            $ErrorMessage = Get-CippException -Exception $_
+            Write-LogMessage -user $ExecutingUser -API $APIName -message "Could not set Always Show From to $AlwaysShowFrom for $UserID. Error: $($ErrorMessage.NormalizedError)" -Sev 'Error' -tenant $TenantFilter -LogData $ErrorMessage
+            return "Could not set Always Show From to $AlwaysShowFrom for $UserID. Error: $($ErrorMessage.NormalizedError)"
+        }
+        return "Set Always Show From to $AlwaysShowFrom for $UserID"
+    }
+}