aws SES 535身份验证凭据无效

Question

我正在尝试使用 aws SES 从Java发送消息。我看到了类似的问题，但是我尝试了所有答案。 问题链接：Amazon SES 535 Authentication Credentials Invalid

我在 SES 管理中拥有域，并通过 SMTP 使用 SMTP 凭据设置新的 IAM 用户在此创建，尝试登录，但给出以下错误消息：535 Authentication Credentials Invalid。

这是代码：

    static final String FROM = "news@example";  //have verified email
    static final String FROMNAME = "NAME";

    // Replace recipient@example.com with a "To" address. If your account
    // is still in the sandbox, this address must be verified.
    static final String TO = "my@gmail.com";

    // Replace smtp_username with your Amazon SES SMTP user name.
    static final String SMTP_USERNAME = "AKIAQZG5ZQZURE****";

    // Replace smtp_password with your Amazon SES SMTP password.
    static final String SMTP_PASSWORD = "MNYYlLz5sBB%2FA8****";//even encoded 

    // The name of the Configuration Set to use for this message.
    // If you comment out or remove this variable, you will also need to
    // comment out or remove the header below.
//    static final String CONFIGSET = "ConfigSet";

    // Amazon SES SMTP host name. This example uses the US West (Oregon) region.
    // See https://docs.aws.amazon.com/ses/latest/DeveloperGuide/regions.html#region-endpoints
    // for more information.
    static final String HOST = "email-smtp.eu-west-1.amazonaws.com";

    // The port you will connect to on the Amazon SES SMTP endpoint.
    static final int PORT = 25;

    static final String SUBJECT = "Amazon SES test (SMTP interface accessed using Java)";

    static final String BODY = String.join(
            System.getProperty("line.separator"),
            "<h1>Amazon SES SMTP Email Test</h1>",
            "<p>This email was sent with Amazon SES using the ",
            "<a href='https://github.com/javaee/javamail'>Javamail Package</a>",
            " for <a href='https://www.java.com'>Java</a>."
    );

    public static void main(String[] args) throws Exception {

        // Create a Properties object to contain connection configuration information.
        Properties props = System.getProperties();
        props.put("mail.transport.protocol", "smtp");
        props.put("mail.smtp.port", PORT);
        props.put("mail.smtp.starttls.enable", "true");
        props.put("mail.smtp.auth", "true");

        // Create a Session object to represent a mail session with the specified properties.
        Session session = Session.getDefaultInstance(props);

        // Create a message with the specified information.
        MimeMessage msg = new MimeMessage(session);
        msg.setFrom(new InternetAddress(FROM,FROMNAME));
        msg.setRecipient(Message.RecipientType.TO, new InternetAddress(TO));
        msg.setSubject(SUBJECT);
        msg.setContent(BODY,"text/html");

        // Add a configuration set header. Comment or delete the
        // next line if you are not using a configuration set
//        msg.setHeader("X-SES-CONFIGURATION-SET", CONFIGSET);

        // Create a transport.
        Transport transport = session.getTransport();

        // Send the message.
        try
        {
            System.out.println("Sending...");

            // Connect to Amazon SES using the SMTP username and password you specified above.
            transport.connect(HOST, SMTP_USERNAME, SMTP_PASSWORD);

            // Send the email.
            transport.sendMessage(msg, msg.getAllRecipients());
            System.out.println("Email sent!");
        }
        catch (Exception ex) {
            System.out.println("The email was not sent.");
            System.out.println("Error message: " + ex.getMessage());
        }
        finally
        {
            // Close and terminate the connection.
            transport.close();
        }
    }

附带了两张图片，第一张是IAM权限策略，第二张是SES域权限策略