(PowerShell) Create Non-Multipart Email with XML Body that is an Attachment

See more SMTP Examples

Creates an email where the only body is a binary WAV file. The technique used in the example could be applied to other binary files, such as PDF, MS-WORD docs, Excel docs, etc.

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Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

# The goal of this example is to create an email that has this MIME format,
# where the body of the email is XML using base64 encoding, 
# and the Content-Type and Content-Disposition are set as indicated.

# Date: Wed, 23 Aug 2023 09:01:52 +0200 (CEST)
# From: joe@example1.com
# Subject: [v=EMCS.NL][a=NL****][k=****][s=0]
# To: mary@example2.com
# MIME-Version: 1.0
# Content-Type: application/octet-stream; charset=us-ascii; name=6bd8dfe259b3a42c90a28a82b5fc6e77.txt
# Content-Transfer-Encoding: Base64
# Content-Disposition: attachment; filename=6bd8dfe259b3a42c90a28a82b5fc6e77.txt
# Message-Id: <......>
# 
# <multi-line base64 encoded XML here>

$success = $true

$xmlBody = "<ie:IE801 xmlns:ie=`"urn:publicid:-:EC:DGTAXUD:EMCS:PHASE4:IE801:V3.01`" xmlns:tms=`"urn:publicid:-:EC:DGTAXUD:EMCS:PHASE4:TMS:V3.01`">....</ie:IE801>"

$email = New-Object Chilkat.Email

# Add subject, TO, FROM, etc.
$email.Subject = "[v=EMCS.NL][a=NL****][k=****][s=0]"
$email.From = "joe@example1.com"
$success = $email.AddTo("Mary","mary@example2.com")

$email.Body = $xmlBody

$email.AddHeaderField("Content-Transfer-Encoding","Base64")
$email.AddHeaderField("Content-Type","application/octet-stream; charset=us-ascii; name=6bd8dfe259b3a42c90a28a82b5fc6e77.txt")
$email.AddHeaderField("Content-Disposition","attachment; filename=6bd8dfe259b3a42c90a28a82b5fc6e77.txt")

# Your email is ready to send
$mailman = New-Object Chilkat.MailMan

$mailman.SmtpHost = "smtp.my_mail_server.com"
$mailman.SmtpUsername = "myUsername"
$mailman.SmtpPassword = "myPassword"
$mailman.SmtpPort = 465
$mailman.SmtpSsl = $true
$mailman.StartTLS = $true

$success = $mailman.SendEmail($email)
if ($success -ne $true) {
    $($mailman.LastErrorText)
    exit
}

$success = $mailman.CloseSmtpConnection()
if ($success -ne $true) {
    $("Connection to SMTP server not closed cleanly.")
}

$("Mail Sent!")