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(Xojo Plugin) Load .eml and Examine the Structure, Attachments, and Related Items

Demonstrates how to load examine the MIME structure of a .eml, and also examine the attachment and related item filenames, attached messages, and multipart/report and DSN information.

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Xojo Plugin for Windows, Linux, Mac OS X, and ARM

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

Dim emlPath As String
emlPath = "C:/AAWorkarea/beatrix/roesner.eml"

Dim mime As New Chilkat.Mime

Dim success As Boolean
success = mime.LoadMimeFile(emlPath)
If (success <> True) Then
    System.DebugLog(mime.LastErrorText)
    Return
End If

System.DebugLog("---- MIME structure ----")
System.DebugLog(mime.GetStructure("text"))
System.DebugLog("------------------------")

Dim email As New Chilkat.Email
success = email.LoadEml(emlPath)

// Was this a signed and/or encrypted email?
// If so, then loading the .eml automatically unwraps
// (i.e. verifies signatures and decrypts) and the resultant
// email is what existed prior to signing/encrypting.
System.DebugLog("Email was Signed: " + Str(email.ReceivedSigned))
System.DebugLog("Email was Encrypted: " + Str(email.ReceivedEncrypted))
If (email.ReceivedSigned = True) Then
    System.DebugLog("Signature(s) valid = " + Str(email.SignaturesValid))
End If

If (email.ReceivedEncrypted = True) Then
    System.DebugLog("Decrypted successfully = " + Str(email.Decrypted))
End If

Dim i As Int32
i = 0
Dim numAttach As Int32
numAttach = email.NumAttachments
System.DebugLog("Number of attachments = " + Str(numAttach))

While i < numAttach
    System.DebugLog("---- Attachment " + Str(i))

    // Examine the filename (if any)
    System.DebugLog("filename: " + email.GetAttachmentFilename(i))
    // Examine the content-ID (if any)
    System.DebugLog("Content-ID: " + email.GetAttachmentContentID(i))
    // Examine the content-type
    System.DebugLog("Content-Type: " + email.GetAttachmentContentType(i))
    // Examine the content-disposition
    System.DebugLog("Content-Disposition" + email.GetAttachmentHeader(i,"content-disposition"))
    // Examine the attachment size:
    System.DebugLog("Size (in bytes) of the attachment: " + Str(email.GetAttachmentSize(i)))

    i = i + 1
Wend
System.DebugLog("--")

// Now for the related items.
Dim numRelated As Int32
numRelated = email.NumRelatedItems
System.DebugLog("Number of related items = " + Str(numRelated))
i = 0
While i < numRelated
    System.DebugLog("---- Related Item " + Str(i))

    // Examine the filename (if any)
    System.DebugLog("filename: " + email.GetRelatedFilename(i))
    // Examine the content-ID (if any)
    System.DebugLog("Content-ID: " + email.GetRelatedContentID(i))
    // Examine the content-type
    System.DebugLog("Content-Type: " + email.GetRelatedContentType(i))
    // Examine the content-location (if any)
    System.DebugLog("Content-Location" + email.GetRelatedContentLocation(i))

    i = i + 1
Wend

// The email could also have attached messages.
// An attached message is another email that was attached to this email.
Dim numAttachedMessages As Int32
numAttachedMessages = email.NumAttachedMessages
System.DebugLog("Number of attached messages = " + Str(numAttachedMessages))
i = 0
While i < numAttachedMessages
    System.DebugLog("---- Attached message " + Str(i))

    // Examine the attached email
    Dim em As Chilkat.Email
    em = email.GetAttachedMessage(i)
    System.DebugLog("from: " + em.From)
    System.DebugLog("subject: " + em.Subject)

    i = i + 1
Wend

// An email could also be a multipart/report email. 
// This is a DSN (Delivery Status Notification)
// The NumReports property indicates how many "reports" exist.
Dim numReports As Int32
numReports = email.NumReports
i = 0
System.DebugLog("Number of reports = " + Str(numReports))
i = 0
While i < numReports
    System.DebugLog("---- Report " + Str(i))
    // Get the raw report data...
    System.DebugLog(email.GetReport(i))
    i = i + 1
Wend

// If the email is a multipart/report, then the information
// from the message/delivery-status part of the email can be retrieved:
If (email.IsMultipartReport() = True) Then

    System.DebugLog("--- Delivery Status Information:")
    System.DebugLog("Status: " + email.GetDeliveryStatusInfo("Status"))
    System.DebugLog("Action: " + email.GetDeliveryStatusInfo("Action"))
    System.DebugLog("Reporting-MTA: " + email.GetDeliveryStatusInfo("Reporting-MTA"))

    Dim sa As Chilkat.StringArray
    sa = email.GetDsnFinalRecipients()
    Dim numFinalRecipients As Int32
    numFinalRecipients = sa.Count
    i = 0
    While i < numFinalRecipients
        System.DebugLog("final recipient: " + sa.GetString(i))
        i = i + 1
    Wend

End If


 

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