Count the Report Parts in a multipart/report Email

See more Email Object Examples

Demonstrates the read-only Chilkat Email.NumReports property, which is the number of report parts in a multipart/report email. A part is counted as a report when its Content-Type is message/* (except message/rfc822) or text/rfc822-headers. Use GetReport to retrieve the body of each report part; indexes are zero-based. This example loads a report email and prints each report part.

Background: When a message can't be delivered, the mail system usually sends back a bounce known as a Delivery Status Notification (DSN). DSNs use the multipart/report structure, which bundles several parts: a human-readable explanation, a machine-readable message/delivery-status part describing exactly what happened (recipient, status code, failing server), and often the original message's headers. Reading these report parts lets a program automatically detect and process bounces.

Chilkat Go Downloads

Download Chilkat for Go

    success := false

    //  Demonstrates the read-only Email.NumReports property, which is the number of report
    //  parts in a multipart/report email (for example, a Delivery Status Notification).
    //  Use GetReport to retrieve the body of each report part.  Indexes are zero-based.

    email := chilkat.NewEmail()

    //  Load a multipart/report email (such as a bounce / DSN message).
    success = email.LoadEml("qa_data/eml/dsn_bounce.eml")
    if success == false {
        fmt.Println(email.LastErrorText())
        email.DisposeEmail()
        return
    }

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

    var i int
    for i = 0; i <= n - 1; i++ {
        fmt.Println("---- Report ", i, " ----")
        fmt.Println(*email.GetReport(i))
    }


    email.DisposeEmail()