Rust

Make a Copy of an Email

Demonstrates the Chilkat Email.MakeCopy method, which copies the entire state of this email into another Email object — message content, recipients, headers, body representations, attachments, and related items. This example copies an email and reads a couple of fields from the copy.

Background: A deep copy gives you an independent duplicate: changes to one object do not affect the other. This is handy for template-and-tweak workflows — build a base message once, copy it per recipient, then vary only the recipient or a few fields — without risk of one send's edits bleeding into the next.

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Rust


// Demonstrates the MakeCopy method, which copies the entire state of this email into
// another Email object -- message content, recipients, headers, bodies, attachments, and
// related items.

let email = chilkat::Email::new();
email.set_subject("Original");
email.set_from("alice@example.com");
let _ = email.add_to("Bob", "bob@example.com");
email.set_body("Original body.");

// Copy the entire email into a new Email object.
let copy = chilkat::Email::new();

if email.make_copy(&copy).is_err() {
    println!("{}", email.last_error_text());
    return;
}

println!("Copy subject: {}", copy.subject());
println!("Copy NumTo: {}", copy.num_to());