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(PowerShell) Load .eml and Examine the Structure, Attachments, and Related ItemsDemonstrates 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.
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. $emlPath = "C:/AAWorkarea/beatrix/roesner.eml" $mime = New-Object Chilkat.Mime $success = $mime.LoadMimeFile($emlPath) if ($success -ne $true) { $($mime.LastErrorText) exit } $("---- MIME structure ----") $($mime.GetStructure("text")) $("------------------------") $email = New-Object 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. $("Email was Signed: " + $email.ReceivedSigned) $("Email was Encrypted: " + $email.ReceivedEncrypted) if ($email.ReceivedSigned -eq $true) { $("Signature(s) valid = " + $email.SignaturesValid) } if ($email.ReceivedEncrypted -eq $true) { $("Decrypted successfully = " + $email.Decrypted) } $i = 0 $numAttach = $email.NumAttachments $("Number of attachments = " + $numAttach) while ($i -lt $numAttach) { $("---- Attachment " + $i) # Examine the filename (if any) $("filename: " + $email.GetAttachmentFilename($i)) # Examine the content-ID (if any) $("Content-ID: " + $email.GetAttachmentContentID($i)) # Examine the content-type $("Content-Type: " + $email.GetAttachmentContentType($i)) # Examine the content-disposition $("Content-Disposition" + $email.GetAttachmentHeader($i,"content-disposition")) # Examine the attachment size: $("Size (in bytes) of the attachment: " + $email.GetAttachmentSize($i)) $i = $i + 1 } $("--") # Now for the related items. # Note: A MIME sub-part can potentially be both a related item AND an attachment. # The typical case is when the item is contained under the multipart/related enclosure and # the item also has a "Content-Disposition" header indicating "attachment". # The location within multipart/related makes it a "related item", yet the Content-Disposition can also make it semantically an attachment. # Related items and attachments are not necessarily mutually exclusive. $numRelated = $email.NumRelatedItems $("Number of related items = " + $numRelated) $i = 0 while ($i -lt $numRelated) { $("---- Related Item " + $i) # Examine the filename (if any) $("filename: " + $email.GetRelatedFilename($i)) # Examine the content-ID (if any) $("Content-ID: " + $email.GetRelatedContentID($i)) # Examine the content-type $("Content-Type: " + $email.GetRelatedContentType($i)) # Examine the content-location (if any) $("Content-Location" + $email.GetRelatedContentLocation($i)) $i = $i + 1 } # The email could also have attached messages. # An attached message is another email that was attached to this email. $numAttachedMessages = $email.NumAttachedMessages $("Number of attached messages = " + $numAttachedMessages) $i = 0 while ($i -lt $numAttachedMessages) { $("---- Attached message " + $i) # Examine the attached email $em = $email.GetAttachedMessage($i) $("from: " + $em.From) $("subject: " + $em.Subject) $i = $i + 1 } # An email could also be a multipart/report email. # This is a DSN (Delivery Status Notification) # The NumReports property indicates how many "reports" exist. $numReports = $email.NumReports $i = 0 $("Number of reports = " + $numReports) $i = 0 while ($i -lt $numReports) { $("---- Report " + $i) # Get the raw report data... $($email.GetReport($i)) $i = $i + 1 } # If the email is a multipart/report, then the information # from the message/delivery-status part of the email can be retrieved: if ($email.IsMultipartReport() -eq $true) { $("--- Delivery Status Information:") $("Status: " + $email.GetDeliveryStatusInfo("Status")) $("Action: " + $email.GetDeliveryStatusInfo("Action")) $("Reporting-MTA: " + $email.GetDeliveryStatusInfo("Reporting-MTA")) $sa = $email.GetDsnFinalRecipients() $numFinalRecipients = $sa.Count $i = 0 while ($i -lt $numFinalRecipients) { $("final recipient: " + $sa.GetString($i)) $i = $i + 1 } } |
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