Swift

Render an Email to MIME Bytes in a BinData

Demonstrates the Chilkat MailMan.RenderToMimeBd method, which renders an Email object as MIME bytes and appends the result to a BinData, without sending the email. This example renders a message into a BinData and prints the byte count.

Background: This is the binary version of RenderToMime. A BinData holds raw bytes, which is the right container when you want the rendered MIME as binary — to write it directly to a file or socket, hash it, or hand it to another API expecting a byte buffer — rather than as text.

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Swift


func chilkatTest() {
    var success: Bool = false

    //  Demonstrates the MailMan.RenderToMimeBd method, which renders an Email object as MIME
    //  bytes and appends the result to a BinData (without sending the email).

    let mailman = CkoMailMan()!

    //  Build the email to render.
    let email = CkoEmail()!
    email.subject = "Rendered email"
    email.from = "alice@example.com"
    email.add(to: "Bob", emailAddress: "bob@example.com")
    email.body = "This message is rendered to MIME bytes in a BinData."

    //  Render the MIME into a BinData.
    let bdMime = CkoBinData()!

    success = mailman.render(toMimeBd: email, renderedMime: bdMime)
    if success == false {
        print("\(mailman.lastErrorText!)")
        return
    }

    print("Rendered MIME size (bytes) = \(bdMime.numBytes.intValue)")

}