Rust

Create a Reply Email

Demonstrates the Chilkat Email.ToReply method, which generates a reply email with updated header and body fields so it can be sent as a reply. Attachments are excluded from the reply, but attached messages are included. The source email is not modified. This example creates a reply and prints its MIME.

Background: Replying is more than swapping sender and recipient: the To is set from the original's reply address, the subject gets an Re: prefix, the original text is quoted, and threading headers (In-Reply-To, References) are added so mail clients group the conversation. ToReply assembles all of that, leaving a message you can edit and send. Dropping attachments is the usual reply convention — you rarely echo the sender's files back to them.

Chilkat Rust Downloads

Download Chilkat for Rust

Rust


// Demonstrates the ToReply method, which generates a reply email with updated header and
// body fields ready to send as a reply.  Attachments are excluded from the reply, but
// attached messages are included.  The source email is not modified.

let email = chilkat::Email::new();
email.set_subject("Project update");
email.set_from("alice@example.com");
let _ = email.add_to("Bob", "bob@example.com");
email.set_body("Here is the project update.");

// Create a reply email based on this message.
let reply = chilkat::Email::new();

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

// The reply is addressed and quoted, ready to edit and send.
println!("{}", reply.get_mime().unwrap_or_default());