Private/New-MimeMessage.ps1
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function New-MimeMessage { [cmdletbinding()] Param ( [parameter(Mandatory = $true)] [ValidateNotNullOrEmpty()] [string[]] $To, [parameter(Mandatory = $true)] [ValidateNotNullOrEmpty()] [String] $From, [parameter(Mandatory = $true)] [ValidateNotNullOrEmpty()] [string] $Subject, [parameter(Mandatory = $true)] [ValidateNotNullOrEmpty()] [string] $Body, [parameter(Mandatory = $false)] [string[]] $CC, [parameter(Mandatory = $false)] [string[]] $BCC, [parameter(Mandatory = $false)] [ValidateScript( {Test-Path $_})] [string[]] $Attachment, [parameter(Mandatory = $false)] [switch] $BodyAsHtml, [parameter(Mandatory = $false)] [switch] $ReturnConstructedMessage ) $message = [MimeKit.MimeMessage]::new() $message.From.Add($From) $message.Subject = $Subject foreach ($T in $To) { $message.To.Add($T) } if ($CC) { foreach ($C in $CC) { $message.Cc.Add($C) } } if ($BCC) { foreach ($B in $BCC) { $message.Bcc.Add($B) } } if ($BodyAsHtml) { $TextPart = [MimeKit.TextPart]::new("html") } else { $TextPart = [MimeKit.TextPart]::new("plain") } $TextPart.Text = $Body if ($Attachment) { [System.Reflection.Assembly]::LoadWithPartialName('System.IO') | Out-Null $Multipart = [MimeKit.Multipart]::new("mixed") $Multipart.Add($TextPart) foreach ($Attach in $Attachment) { $MimeType = (Get-MimeType -File $Attach) -split "/" $MimePart = [MimeKit.MimePart]::new($MimeType[0], $MimeType[1]) $MimePart.ContentObject = [MimeKit.ContentObject]::new([IO.File]::OpenRead($Attach), [MimeKit.ContentEncoding]::Default) $MimePart.ContentDisposition = [MimeKit.ContentDisposition]::new([MimeKit.ContentDisposition]::Attachment) $MimePart.ContentTransferEncoding = [MimeKit.ContentEncoding]::Base64 $MimePart.FileName = [IO.Path]::GetFileName($Attach) $Multipart.Add($MimePart) } $message.Body = $Multipart } else { $message.Body = $TextPart } if ($ReturnConstructedMessage) { return $message.ToString() } else { return $message } } |