Add a Plain-Text Alternative Body to an Email

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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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//  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.

Chilkat.Email email = new Chilkat.Email();
email.Subject = "HTML with a plain-text alternative";

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

//  Add a plain-text alternative.
email.AddPlainTextAlternativeBody("This is the plain-text version.");

Debug.WriteLine("NumAlternatives = " + Convert.ToString(email.NumAlternatives));