How to send Email In SpringBoot | SpringBoot Tutorial

This is a latest guide on how to send Email in your SpringBoot Application. Simply follow these steps to make your Spring Application be able to send Email.

Step 1: Add Project Dependency

<dependency>
 <groupId>org.springframework.boot</groupId>
 <artifactId>spring-boot-starter-mail</artifactId>
</dependency>

Step 2: Set up App Password inside your Google Account

• Go to (Google Account)[https://myaccount.google.com]
• On Search Bar, search for App Passwords then you should see App Passwords with Security under it
• Under Select App, find Other (Custom Name), input your desired name then click Generate
• Copy the password we will use it later

Step 3: Set up Application.properties

spring.mail.username=[e-mail]
spring.mail.properties.mail.smtp.starttls.required=true
spring.mail.host=smtp.gmail.com
spring.mail.port=587
spring.mail.password=Copied Password From App Password
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.transport.protocol=smtp
spring.mail.properties.mail.smtp.starttls.enable=true

Step 4: Configure Bean for JavaMailSender

@Configuration
public class MailConfiguration {

    @Bean
    public JavaMailSender getJavaMailSender() {
        JavaMailSenderImpl mailSender = new JavaMailSenderImpl();
        mailSender.setHost("smtp.gmail.com");
        mailSender.setPort(587);

        mailSender.setUsername("[e-mail]");
        mailSender.setPassword("copiedPassword");

        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.debug", "true");

        return mailSender;
    }
}

Step 5: Implement MailSenderService

@Service
public class MailSenderService {
    @Autowired
    private JavaMailSender mailSender;

    public void sendNewMail(String to, String subject, String body) {
        SimpleMailMessage message = new SimpleMailMessage();
        message.setTo(to);
        message.setSubject(subject);
        message.setText(body);
        mailSender.send(message);
    }
}

Step 6: Start sending email

private final MailSenderService mailService;

public void Foo(){
 mailService.sendNewMail("[e-mail]", "Subject right here", "Body right there!")
}

I hope this guide will help you. Thanks for reading!

Comments

[Ahmed Amine Bouricha]

i think doing step 4 is enough without doing the Step 3,isn't ?
because the Java configuration class will override the settings from the application properties or YAML file

and thanks for the guide

[vatana7]

You are correct, thanks for the correction

[Igor Meshalkin]

All guides must be like this.

[Akinwale Folorunsho Habibullah]

Thanks for sharing @vatana7 ,

I would add spring.mail.properties.smtp.ssl.enable=true

Chances are that SMTP connection will fail without this when sending emails.

[vatana7]

Thanks!

[Сергей Немчинский]

the code is exactly the same, but I still get the error Failed message 1: org.eclipse.angus.mail.util.MailConnectException: Couldn't connect to host, port: smtp.gmail.com, 587; timeout -1;

[vatana7]

Did you follow step 2 correctly? It should be able to send if follow these steps