mail-sender-springboot mail sender application in spring boot using Gmail , spring-boot-starter-mail , spring boot ( 2.5.9 / 2.6.3) maven java 8 Intellij IDEA project ( you can use STS or any other IDE of choice ) Doc : https://github.com/iifast2/mail-sender-app-spring-boot/blob/main/How_to_Send_Email_Using_Spring_Boot.pdf