Could not autowire org.springframework.mail.javamail.JavaMailSender

Question

I got the following problem when trying to run my application. Have debugged everything and still nothing.

The IDE is finding the bean without any issue so I\'m very con

Answer 1

As already stated you need to set at least spring.mail.host in your application properties. Spring Boot autoconfiguration only creates a JavaMailSender bean if the property is set: https://github.com/spring-projects/spring-boot/blob/master/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/mail/MailSenderPropertiesConfiguration.java#L38

Answer 2

Configuring in application.properties for spring.mail related properties are good enough to do Autowire of JavaMailSender. In our case, someone also had Bean declaration and hence this was taking precedence over application.properties. Hence, Autowired was not showing. I hope this helps one.