(PowerShell) Access Attached Message (Embedded Email)

How to access an email embedded within another email (i.e. an attached message).

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat .NET Downloads Chilkat .NET Assemblies

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

$success = $false

$email = New-Object Chilkat.Email

# Load an email from a .eml
$success = $email.LoadEml("embeddedEmail.eml")
if ($success -eq $false) {
    $($email.LastErrorText)
    exit
}

# Display how many attached emails are embedded within
# this one:
$numAttached = $email.NumAttachedMessages
$("numAttached = " + $numAttached)

# Get the 1st attached message.
$email2 = New-Object Chilkat.Email
$success = $email.GetAttachedEmail(0,$email2)
if ($success -eq $true) {

    # Display the subject, From, and a header field...
    $($email2.Subject)
    $($email2.From)
    $($email2.GetHeaderField("X-SOMETHING"))
}