Swift

Add a Plain-Text Alternative Body to an Email

Demonstrates the Chilkat Email.AddPlainTextAlternativeBody method, which adds a plain-text alternative body. Combined with an HTML body, it produces a multipart/alternative email that carries both representations. This example sets an HTML body, adds a plain-text alternative, and prints the alternative count.

Background: This is the companion to AddHtmlAlternativeBody. A polished email provides both an HTML body (for rich display) and a plain-text fallback, and the receiving client picks whichever it prefers. Including a real plain-text alternative — rather than letting the HTML stand alone — improves accessibility, helps with spam scoring, and guarantees the message is readable in text-only environments.

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Swift


func chilkatTest() {
    //  Demonstrates the AddPlainTextAlternativeBody method, which adds a plain-text alternative
    //  body.  Combined with an HTML body, this produces a multipart/alternative email offering
    //  both representations of the same content.

    let email = CkoEmail()!
    email.subject = "HTML with a plain-text alternative"

    //  Set an HTML body.
    email.setHtmlBody(html: "<html><body><b>This is the HTML version.</b></body></html>")

    //  Add a plain-text alternative.
    email.addPlainTextAlternativeBody(body: "This is the plain-text version.")

    print("NumAlternatives = \(email.numAlternatives.intValue)")

}