Getting this error on the email address I am trying to send an email to!

Not sure why I need to verify an email I am sending to which doesn't belong to me?

DEBUG SMTP: MessagingException while sending, THROW: com.sun.mail.smtp.SMTPSendFailedException: 554 Message rejected: Email address is not verified. The following identities failed the check in region EU-WEST-1: danielhaughton@outlook.com

@Configuration
@PropertySource("app.properties")
@EnableTransactionManagement
public class AppConfig {
@Autowired
private Environment env;
@Bean
public JavaMailSender getJavaMailSender() {
    JavaMailSenderImpl mailSender = new JavaMailSenderImpl();
    mailSender.setHost("email-smtp.eu-west-1.amazonaws.com");
    mailSender.setPort(25);
    mailSender.setUsername("removedcreds");
    mailSender.setPassword("removed creds");
    Properties props = mailSender.getJavaMailProperties();
    props.put("mail.transport.protocol", "smtp");
    props.put("mail.smtp.auth", "true");
    props.put("mail.smtp.starttls.enable", "true");
    props.put("mail.smtp.starttls.required", "true");

    props.put("mail.debug", "true");
    return mailSender;
}

EmailService @Component public class EmailServiceImpl {

@Autowired
public JavaMailSender emailSender;

public void sendSimpleMessage(String toAddress, String subject, String text) 
{
    SimpleMailMessage message = new SimpleMailMessage();
    message.setTo(toAddress);
    message.setFrom("noreply@mydomain.com");
    message.setSubject(subject);
    message.setText(text);
    emailSender.send(message);
}
}

My emailserviceimpl is autowird into a web controller that I send the email from