Rust

Remove the Plain-Text Body from an Email

Demonstrates the Chilkat Email.RemovePlainTextAlternative method, which removes the plain-text body from the email if one exists. Other body representations, attachments, and related items remain unchanged. This example builds a message with both plain-text and HTML alternatives, then removes the plain text.

Background: This is the counterpart to RemoveHtmlAlternative. Removing the plain-text alternative leaves an HTML-only message. Note that dropping the plain-text fallback is generally discouraged for real mail — it hurts accessibility and can raise spam scores — but it is occasionally needed when a downstream system expects a single HTML representation.

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Rust

// Demonstrates the RemovePlainTextAlternative method, which removes the plain-text body
// from the email (if one exists).  Other body representations, attachments, and related
// items remain.

let email = chilkat::Email::new();
email.set_subject("Remove plain-text alternative");

// Create an email with both plain-text and HTML alternatives.
email.set_text_body("This is the plain-text version.", "text/plain");
let _ = email.add_html_alternative_body("<html><body>This is the HTML version.</body></html>");
println!("NumAlternatives before = {}", email.num_alternatives());
println!("HasPlainTextBody before: {}", email.has_plain_text_body());

// Remove the plain-text body, leaving the HTML alternative.
email.remove_plain_text_alternative();
println!("NumAlternatives after = {}", email.num_alternatives());
println!("HasPlainTextBody after: {}", email.has_plain_text_body());