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VBScript

Attach an Email to Another Email

See more Email Object Examples

Demonstrates the Chilkat Email.AttachEmail method, which attaches a copy of another email to this email object. The attached email is encapsulated in a message/rfc822 subpart. Because a copy is attached, later changes to the source email do not affect the embedded message. This example attaches one email to another.

Background: "Forward as attachment" produces exactly this structure: the original message is embedded whole as a message/rfc822 part rather than quoted into the body. This preserves the original's headers and formatting intact, which matters for forwarding to a mailbox that will re-parse it, or for reporting spam/phishing with the original evidence attached. Such parts are counted by NumAttachedMessages.

Chilkat VBScript Downloads

VBScript
Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)

success = 0

'  Demonstrates the AttachEmail method, which attaches a copy of another email to this email
'  object.  The attached email is encapsulated in a message/rfc822 subpart.

set innerEmail = CreateObject("Chilkat.Email")
innerEmail.Subject = "Original message"
innerEmail.From = "alice@example.com"
innerEmail.Body = "This is the original message being forwarded."

set email = CreateObject("Chilkat.Email")
email.Subject = "FW: Original message"
email.From = "bob@example.com"
email.Body = "See the attached original email."

'  Attach a copy of the inner email as a message/rfc822 part.

success = email.AttachEmail(innerEmail)
If (success = 0) Then
    outFile.WriteLine(email.LastErrorText)
    WScript.Quit
End If

outFile.WriteLine("NumAttachedMessages = " & email.NumAttachedMessages)

outFile.Close