Get a Digest Message as an Email Object

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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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    success := false

    //  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.

    email := chilkat.NewEmail()

    success = email.LoadEml("qa_data/eml/digest.eml")
    if success == false {
        fmt.Println(email.LastErrorText())
        email.DisposeEmail()
        return
    }

    n := email.NumDigests()
    fmt.Println("NumDigests = ", n)

    //  Retrieve each bundled message as its own Email object.
    digestEmail := chilkat.NewEmail()
    var i int
    for i = 0; i <= n - 1; i++ {
        success = email.GetDigestEmail(i,digestEmail)
        fmt.Println("Digest ", i, " subject: ", digestEmail.Subject())
    }

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

    email.DisposeEmail()
    digestEmail.DisposeEmail()