Swift

Get an Attached Message as an Email Object

Demonstrates the Chilkat Email.GetAttachedEmail method, which copies the Nth embedded message/rfc822 MIME part into another Email object. The index is zero-based (valid values run from 0 through NumAttachedMessages - 1). This example attaches an email and then extracts it back into its own object.

Background: When a message forwards another email as an attachment, that nested message is a complete email in its own right. GetAttachedEmail turns it back into a fully navigable Email object so you can read its subject, sender, body, and even its own attachments — essential for processing forwarded mail, or for tools that unpack reported spam/phishing to examine the original.

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Swift


func chilkatTest() {
    var success: Bool = false

    //  Demonstrates the GetAttachedEmail method, which copies the Nth embedded message/rfc822
    //  MIME part into another Email object.  The index is zero-based.

    //  Build an inner email and attach it to an outer email.
    let innerEmail = CkoEmail()!
    innerEmail.subject = "Embedded message"
    innerEmail.from = "alice@example.com"
    innerEmail.body = "This is the embedded message."

    let email = CkoEmail()!
    email.subject = "Has an attached message"
    success = email.attach(email: innerEmail)
    if success == false {
        print("\(email.lastErrorText!)")
        return
    }

    //  Copy the first embedded message (index 0) into its own Email object.
    let attached = CkoEmail()!
    success = email.getAttached(index: 0, email: attached)
    if success == false {
        print("\(email.lastErrorText!)")
        return
    }

    print("Attached email subject: \(attached.subject!)")
    print("Attached email from: \(attached.from!)")

}