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Integrate LDAP Authentication and Email Services in Your Web App

In this project, we’ll integrate LDAP authentication and email services into a full stack Spring Boot web application. We’ll show all the steps that are required to properly configure Spring Security, LDAP, and Google SMTP server.

Integrate LDAP Authentication and Email Services in Your Web App

You will learn to:

Add Spring Security in your full stack application.

Configure LDAP authentication for your application.

Set up a Google SMTP server in your application.

Configure an SMTP server to send emails using your application.



Web Development



Basic knowledge of Thymeleaf

Basic understanding of Java

Basic knowledge of Spring Boot

Basic knowledge of LDAP





Spring Boot

Project Description

This project involves adding LDAP user authentication and email services to an existing Spring Boot application. LDAP is a protocol used to access directory servers through the internet. To facilitate efficient data interchange, we’ll create the LDIF file format to specify the directory structure. To enable access to the LDAP directory server, we’ll add an embedded LDAP server using the UnboundID LDAP SDK. This will allow the application to manage user authentication and authorization using credentials. Additionally, we will integrate a Google SMTP server with the application to add email services.

The base application used in this project is a full stack application that was developed using Spring Boot and Thymeleaf. You can explore the “Build a Full Stack Application Using Spring Boot and Thymeleaf” project to see the development steps.

Project Tasks


Get Started

Task 0: Introduction to LDAP


Security Configuration

Task 1: Add Dependencies

Task 2: Define Directory Entries

Task 3: Add LDAP Configurations


Implementation of LDAP

Task 4: Add Security Configuration

Task 5: HTTP Security Configuration

Task 6: Add the Logout Functionality and Test LDAP Integration


Email Server Configurations

Task 7: Add and Configure Dependencies

Task 8: Configure the Email Server


Integrating the Email Functionality

Task 9: Add the POST API Request to Send Email

Task 10: Add a Button to Send Email