Rust

SMTP GMail Send using App Password

See more GMail SMTP/IMAP/POP Examples

Demonstrates how to authenticate using an app password with GMail for SMTP (port 465 using implicit SSL/TLS). Rust

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// Starting May 30, 2022, Google will no longer support the use of third-party apps or devices 
// which ask you to sign in to your Google Account using only your username and password.

// Instead of authenticating with your GMail username/password, a GMail user can create an App Password
// and then login using their username/app_password.   It's literally the same, except it allows a GMail
// account owner to isolate passwords to specific applications.

// The Gmail account owner would first need to make sure she has 2-Step Verification setup for her account.
// Note: The 2FA verification is not a factor when authenticating with an app password. The 2FA is required
// to setup app passwords in the Google account console.  See Sign in with App Passwords

// After the GMail account owner has setup his app password, he simply uses the app password instead of his GMail account password.

let mailman = chilkat::MailMan::new();

mailman.set_smtp_host("smtp.gmail.com");

mailman.set_smtp_username("user@gmail.com");
mailman.set_smtp_password("srnyyvqajocnsvdp");

mailman.set_smtp_ssl(true);
mailman.set_smtp_port(465);

if mailman.smtp_connect().is_err() {
    println!("{}", mailman.last_error_text());
    return;
}

if mailman.smtp_authenticate().is_err() {
    println!("{}", mailman.last_error_text());
    return;
}

println!("SMTP Success!");