(VB.NET UWP/WinRT) Parsing a Multipart/Digest Email

This example demonstrates how to parse a multipart/digest email. An email parsed by this sample could have a MIME structure as follows:

multipart/mixed
    text/plain
    text/plain
    multipart/digest
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
        message/rfc822
    text/plain

Chilkat Universal Windows Platform (UWP) / WinRT Downloads Chilkat for the Universal Windows Platform (UWP)

' Note: This example requires Chilkat v9.5.0.66 or greater.

Dim emlPath As String = "qa_data/eml/multipart_digest.eml"

Dim email As New Chilkat.Email

' For this example, we'll load the email from a .eml.
' The email could alternatively be loaded as a result of downloading from an IMAP or POP3 server..

Dim success As Boolean = email.LoadEml(emlPath)
If (success <> True) Then
    Debug.WriteLine(email.LastErrorText)
    Exit Sub
End If


Dim numDigests As Integer = email.NumDigests
Debug.WriteLine("num digests = " & numDigests)

Dim i As Integer = 0
While i < numDigests
    Dim eDigest As Chilkat.Email = email.GetDigest(i)
    Debug.WriteLine(i & ":" & eDigest.FromAddress & ", " & eDigest.Subject)
    Dim m As String = eDigest.GetHeaderField("Message")
    If (eDigest.LastMethodSuccess = True) Then
        Debug.WriteLine("    Message = " & m)
    End If


    i = i + 1
End While