Ilias Tsagklis

About Ilias Tsagklis

Ilias Tsagklis is a senior software engineer working in the telecom domain. He is an applications developer in a wide variety of applications/services. Ilias is co-founder and Executive Editor at Java Code Geeks.

Sending e-mails with Spring

We will create a simple Spring service that will be used for sending mail. One method will create a SimpleMailMessage on the spot, while the other will use a preconfigured default message. The source code for the service is the following:

package com.javacodegeeks.spring.mail;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.mail.MailSender;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.stereotype.Service;
public class MailService {
    private MailSender mailSender;
    private SimpleMailMessage alertMailMessage;
    public void sendMail(String from, String to, String subject, String body) {


  SimpleMailMessage message = new SimpleMailMessage();







    public void sendAlertMail(String alert) {


  SimpleMailMessage mailMessage = new SimpleMailMessage(alertMailMessage);




The corresponding Spring XML file that bootstraps the container is the following:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns=""
    <context:component-scan base-package="com.javacodegeeks.spring.mail" />    
    <bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">

  <property name="host" value=""/>

  <property name="port" value="25"/>

  <property name="username" value=""/>

  <property name="password" value="mypassword"/>

  <property name="javaMailProperties">


    <!-- Use SMTP transport protocol -->

    <prop key="mail.transport.protocol">smtp</prop>

    <!-- Use SMTP-AUTH to authenticate to SMTP server -->

    <prop key="mail.smtp.auth">true</prop>

    <!-- Use TLS to encrypt communication with SMTP server -->

    <prop key="mail.smtp.starttls.enable">true</prop>

    <prop key="mail.debug">true</prop>


    <bean id="alertMailMessage" class="org.springframework.mail.SimpleMailMessage">

  <property name="from">



  <property name="to">



  <property name="subject" value="Alert - Exception occurred. Please investigate"/>

In case you wish to use Gmail’s SMTP server, make sure that the following JavaMail properties are configured appropriately:

Finally, we create a class that will be used to create the Spring container and test the simple mail service we created. The source code is the following:

package com.javacodegeeks.spring.mail;
import org.springframework.context.ApplicationContext;
public class MailServiceTest {
    public static void main(String[] args) {


  ApplicationContext context = new FileSystemXmlApplicationContext("conf/spring.xml");

  MailService mailService = (MailService) context.getBean("mailService");


  mailService.sendMail("", "", "Testing123", "Testing only nn Hello Spring Email Sender");


  mailService.sendAlertMail("Exception occurred");


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