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Zip an Email's Attachments into One File

Demonstrates the Chilkat Email.ZipAttachments method, which replaces all of an email's attachments with a single Zip file attachment having the specified filename. The original attachments are removed and packed into the Zip. This example adds two attachments and zips them into one.

Background: Bundling multiple attachments into a single .zip keeps a message tidy, compresses the payload, and works around recipients or gateways that limit the number of attachments. Note that the filename here (files.zip) names the attachment inside the message — it is not a path on disk. The reverse operation is UnzipAttachments.

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Local $bSuccess = False

;  Demonstrates the ZipAttachments method, which replaces all of an email's attachments
;  with a single Zip file attachment having the specified filename.  The original
;  attachments are removed and packed into the Zip.

$oEmail = ObjCreate("Chilkat.Email")
$oEmail.Subject = "Zip the attachments"

$oEmail.AddStringAttachment("a.txt","first attachment")
$oEmail.AddStringAttachment("b.txt","second attachment")
ConsoleWrite("NumAttachments before = " & $oEmail.NumAttachments & @CRLF)

;  Replace all attachments with a single Zip attachment named "files.zip".
$bSuccess = $oEmail.ZipAttachments("files.zip")
If ($bSuccess = False) Then
    ConsoleWrite($oEmail.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite("NumAttachments after = " & $oEmail.NumAttachments & @CRLF)