Steps of Spring Boot Email Service

1. First You need to create a Spring Boot Project
2. Add the below mention dependency

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

3. Update application.properties file (Gmail SMTP and Amazon SES SMTP)

# Gmail SMTP
spring.mail.host=smtp.gmail.com
spring.mail.port=587
spring.mail.username=<<Enter Gmail ID>>
spring.mail.password=<<Enter Your Gmail Password>>
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.starttls.enable=true
# Amazon SES SMTP
#spring.mail.host=email-smtp.us-west-2.amazonaws.com
#spring.mail.username=username
#spring.mail.password=password
#spring.mail.properties.mail.transport.protocol=smtp
#spring.mail.properties.mail.smtp.port=25
#spring.mail.properties.mail.smtp.auth=true
#spring.mail.properties.mail.smtp.starttls.enable=true
#spring.mail.properties.mail.smtp.starttls.required=true

4. Add Email configuration Class

package com.email.config;
import java.util.Properties;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.JavaMailSenderImpl;
import org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer;
import freemarker.cache.ClassTemplateLoader;
import freemarker.cache.TemplateLoader;
import freemarker.template.Configuration;
public class EmailConfig {
 
 @Value("${spring.mail.templates.path}")
    private String mailTemplatesPath;
 
 
 @Value("${spring.mail.host}")
    private String mailServerHost;
@Value("${spring.mail.port}")
    private Integer mailServerPort;
@Value("${spring.mail.username}")
    private String mailServerUsername;
@Value("${spring.mail.password}")
    private String mailServerPassword;
@Value("${spring.mail.properties.mail.smtp.auth}")
    private String mailServerAuth;
@Value("${spring.mail.properties.mail.smtp.starttls.enable}")
    private String mailServerStartTls;
@Bean 
    public FreeMarkerConfigurer freemarkerClassLoaderConfig() {
        Configuration configuration = new Configuration(Configuration.VERSION_2_3_30);
        TemplateLoader templateLoader = new ClassTemplateLoader(this.getClass(), "/" + mailTemplatesPath);
        configuration.setTemplateLoader(templateLoader);
        FreeMarkerConfigurer freeMarkerConfigurer = new FreeMarkerConfigurer();
        freeMarkerConfigurer.setConfiguration(configuration);
        return freeMarkerConfigurer; 
    }
    
    
    @Bean
    public JavaMailSender getJavaMailSender() {
        JavaMailSenderImpl mailSender = new JavaMailSenderImpl();
        mailSender.setHost(mailServerHost);
        mailSender.setPort(mailServerPort);
        mailSender.setUsername(mailServerUsername);
        mailSender.setPassword(mailServerPassword);
        Properties props = mailSender.getJavaMailProperties();
        props.put("mail.transport.protocol", "smtp");
        props.put("mail.smtp.auth", mailServerAuth);
        props.put("mail.smtp.starttls.enable", mailServerStartTls);
        props.put("mail.debug", "true");
        return mailSender;
    }
}

faizakram/SpringBoot-Email