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Get a Digest Message as an Email Object

Demonstrates the Chilkat Email.GetDigestEmail method, which copies the Nth digest email contained within a multipart/digest into another Email object. The first digest is at index 0; the NumDigests property gives the count. This example loads a digest email and lists each bundled message's subject.

Background: A multipart/digest packs many separate emails into one carrier message — historically used by mailing lists to send a single daily bundle of that day's posts. GetDigestEmail unpacks each member into a full Email object so it can be read or processed individually. This differs from GetAttachedEmail, which extracts messages attached to an ordinary email rather than the members of a digest.

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llSuccess = .F.

//  Demonstrates the GetDigestEmail method, which copies the Nth digest email contained
//  within a multipart/digest into another Email object.  The first digest is at index 0;
//  use the NumDigests property for the count.

loEmail = createobject("CkEmail")

llSuccess = loEmail.LoadEml("qa_data/eml/digest.eml")
if (llSuccess = .F.) then
    ? loEmail.LastErrorText
    release loEmail
    return
endif

n = loEmail.NumDigests
? "NumDigests = " + str(n)

//  Retrieve each bundled message as its own Email object.
loDigestEmail = createobject("CkEmail")

for i = 0 to n - 1
    llSuccess = loEmail.GetDigestEmail(i,loDigestEmail)
    ? "Digest " + str(i) + " subject: " + loDigestEmail.Subject
next

//  Note: The path "qa_data/..." is a relative local filesystem path,
//  relative to the current working directory of the running application.


release loEmail
release loDigestEmail