PowerShell

Get a Digest Message as an Email Object

Demonstrates the Chilkat Email.GetDigestEmail method, which copies the Nth digest email contained within a multipart/digest into another Email object. The first digest is at index 0; the NumDigests property gives the count. This example loads a digest email and lists each bundled message's subject.

Background: A multipart/digest packs many separate emails into one carrier message — historically used by mailing lists to send a single daily bundle of that day's posts. GetDigestEmail unpacks each member into a full Email object so it can be read or processed individually. This differs from GetAttachedEmail, which extracts messages attached to an ordinary email rather than the members of a digest.

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

$success = $false

#  Demonstrates the GetDigestEmail method, which copies the Nth digest email contained
#  within a multipart/digest into another Email object.  The first digest is at index 0;
#  use the NumDigests property for the count.

$email = New-Object Chilkat.Email

$success = $email.LoadEml("qa_data/eml/digest.eml")
if ($success -eq $false) {
    $($email.LastErrorText)
    exit
}

$n = $email.NumDigests
$("NumDigests = " + $n)

#  Retrieve each bundled message as its own Email object.
$digestEmail = New-Object Chilkat.Email

for ($i = 0; $i -le $n - 1; $i++) {
    $success = $email.GetDigestEmail($i,$digestEmail)
    $("Digest " + $i + " subject: " + $digestEmail.Subject)
}

#  Note: The path "qa_data/..." is a relative local filesystem path,
#  relative to the current working directory of the running application.