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Tcl

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 Tcl Downloads

Tcl

load ./chilkat.dll

set 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 [new_CkEmail]

CkEmail_put_Subject $innerEmail "Original message"
CkEmail_put_From $innerEmail "alice@example.com"
CkEmail_put_Body $innerEmail "This is the original message being forwarded."

set email [new_CkEmail]

CkEmail_put_Subject $email "FW: Original message"
CkEmail_put_From $email "bob@example.com"
CkEmail_put_Body $email "See the attached original email."

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

set success [CkEmail_AttachEmail $email $innerEmail]
if {$success == 0} then {
    puts [CkEmail_lastErrorText $email]
    delete_CkEmail $innerEmail
    delete_CkEmail $email
    exit
}

puts "NumAttachedMessages = [CkEmail_get_NumAttachedMessages $email]"

delete_CkEmail $innerEmail
delete_CkEmail $email