Rust

Set the Email Date Header to the Current System Date/Time

Demonstrates how to set the Date header field of an email to the computer's current date/time. Note: When an email object is instantiated, the Date header field is automatically added and initialized to the current system date/time. The need to explicitly set the Date header could arise when loading an email from a .eml. Rust

let email = chilkat::Email::new();

// At this point, a new email object has been instantiated, and it
// already has a Date header field containing the current date/time.
println!("Date: {}", email.email_date_str());

// We can also get the Date header like this:
println!("Date: {}", email.get_header_field("Date").unwrap_or_default());

// Load a .eml into the email object:
if email.load_eml("myEmlFiles/someEmail.eml").is_err() {
    println!("{}", email.last_error_text());
    return;
}

// Show the Date that was in the .eml
println!("Date: {}", email.email_date_str());

// Now the Date header contains whatever was in the .eml
// Let's update it to the current system date/time..

let date_time = chilkat::DateTime::new();

let _ = date_time.set_from_current_system_time();

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

// Now show that the Date is the current system time:
println!("Date: {}", email.email_date_str());
println!("Date: {}", email.get_header_field("Date").unwrap_or_default());