Lua

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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Lua

local chilkat = require("chilkat")

-- 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.

local email = chilkat.Email.new()
email.subject = "HTML with a plain-text alternative"

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

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

print("NumAlternatives = " .. email.num_alternatives)