a bean of type 'org.springframework.mail.javamail.JavaMailSender' that could not be found

Question

I am using spring boot 2.0.7 Release and spring-boot-starter-mail-2.0.7.Release.

I am autowiring javaMailsender inside the class working ok on windows while trying to deploy on Unix getting belwo issue

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APPLICATION FAILED TO START
***************************

Description:

Field javaMailSender in com.fti.di.capstock.tran.pub.email.SendEmail required a bean of type 'org.springframework.mail.javamail.JavaMailSender' that could not be found.

The injection point has the following annotations:
        - @org.springframework.beans.factory.annotation.Autowired(required=true)


Action:

Consider defining a bean of type 'org.springframework.mail.javamail.JavaMailSender' in your configuration.

---

    import org.springframework.mail.javamail.JavaMailSender;
    import org.springframework.mail.javamail.MimeMessageHelper;
    import org.springframework.messaging.Message;
    import org.springframework.messaging.MessagingException;
    import org.springframework.stereotype.Component;

    import com.fti.di.capstock.tran.pub.constants.ApplicationFlowConstants;
    import com.fti.di.integration.constants.IntegrationConstants;
    import com.fti.di.integration.util.StringUtil;

    @Component("sendEmail")
    public class SendEmail {

        @Autowired
        private JavaMailSender javaMailSender;

        @Autowired
        Environment env;

        @ServiceActivator

Answer 1

This message is a Spring Boot application startup error, and it occurs when the application tries to create an EmailService object but cannot find the JavaMailSender object it needs.

The error indicates that the program cannot find a bean of type 'org.springframework.mail.javamail.javaMailSender' in the configuration of the Spring Boot application. To solve this problem, you must define the bean that the application needs in the configuration file of Spring Boot and make sure that it is accessible.

The following code can be added in the configuration file of the Spring Boot application to define a Bean of type 'org.springframework.mail.javamail.JavaMailSender':

import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.JavaMailSenderImpl;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class EmailConfig {

    @Bean
    public JavaMailSender javaMailSender() {
        JavaMailSenderImpl mailSender = new JavaMailSenderImpl();
        // set mailSender properties (host, port, username, password, etc.)
        return mailSender;
    }
}

The appropriate JavaMailSender properties must be specified on the email accounts that have been used. Then the application must be restarted with the debug option enabled to view the report showing more details about the problem.

Answer 2

I have this error and it was related to missing properties in application.yml in the test folder.

Answer 3

This error occurred due to the missing following properties in the application.yml file.

  mail:
    host: localhost
    port: 1025
    username: hello
    password: hello

    properties:
      mail:
        smtp:
          ssl:
            trust: "*"
          auth: true
          starttls:
            enable: true
          connectiontimeout: 5000
          timeout: 3000
          writetimeout: 5000

Answer 4

the best answer I ve found was to check if you have a type in your application.properties:

spring.mail.host
spring.mail.username
spring.mail.password
spring.mail.port

Check the response of gleidson cardoso da silva from Could not autowire org.springframework.mail.javamail.JavaMailSender

Answer 5

you've to provide the mail configuration in application.properties

spring.mail.host=MAIL_SERVER_IP
spring.mail.port=MAIL_SERVER_PORT
spring.mail.userName=USER_NAME
spring.mail.password=THE_PASSWORD

and if authentication not enable in server then remove userName and password and add this

spring.mail.properties.mail.smtp.auth=false
spring.mail.properties.mail.smtp.starttls.enable=false

Answer 6

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.JavaMailSenderImpl;

@Configuration
public class Config {

    @Bean
    public JavaMailSender javaMailSender() {
        return new JavaMailSenderImpl();
    }

}

You can also return an instance of JavaMailSenderImpl() from your @Bean above saving you the hustle of having to implement a bunch of methods when you try to return the actual JavaMailSender() class.

Answer 7

In My project i was reading email properties file like hostname, port etc from spring config server (Spring cloud). 
I was missing a dependency at client end. Once i added that Dependency.

<dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-config</artifactId>
</dependency>

JavamailSender class able to read those properties and worked fine.
In spring boot we need not define JavaMailSender bean manually. spring boot does itself. 

Answer 8

Declare a @Bean of the type JavaMailSender in a Configuration class (This is useful when you want to inject a class which is not part of your Spring Context, like a class that belongs to a 3rd-party lib, which happens to be your case). For example:

@Configuration
public class MyConfig {

    @Bean
    public JavaMailSender javaMailSender() { 
          return new JavaMailSender();
    }
}

Make sure that the you have set the right properties under application.properties as well.

Also, take a look into this question, as I believe this is a duplicate (if it's not, I am sorry)