Send Emails from an application

Update Spring Boot application configuration:

• Update your application.properties or application.yml file with the Amazon SES SMTP settings, as shown in the previous response. Replace region, your_smtp_username, and your_smtp_password with your actual SES SMTP credentials.

Spring configuration should look like

spring.mail.host=email-smtp.{region}.amazonaws.com
spring.mail.port=587
spring.mail.username=your_smtp_username
spring.mail.password=your_smtp_password
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.starttls.enable=true
spring.mail.properties.mail.smtp.starttls.required=true

Please note you need to replace {region} with the actual region, such as us-east-1

Postman Request

This is what our post request will look like using postman.

SpringBoot Java Files

Here is our REST controller which receives the request

@RestController
public class EmailController {

    @Autowired
    private EmailService emailService;

    @PostMapping("/email")
    public ResponseEntity<Void> sendEmail(@RequestBody Map<String, String> param) {
        emailService.sendSimpleMail(
            param.get("to"), 
            param.get("subject"), 
            param.get("content")
        );
        return ResponseEntity.ok().build();
    }
}

And here is our EmailService which sends the email

@Service
public class EmailService {

    @Autowired
    private JavaMailSender mailSender;

    public void sendSimpleMail(String to, String subject, String content) {
        SimpleMailMessage message = new SimpleMailMessage();

        String fromName = "Thomas Wilde";
        String fromEmail = "support@wildebeastmedia.com";
        message.setFrom(fromName + " <" + fromEmail + ">");

        message.setTo(to);
        message.setSubject(subject);
        message.setText(content);
        mailSender.send(message);
    }
}

Resulting Email

Here is the email received to my personal gmail

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