spring-boot-starter-mail Considere la posibilidad de definir un bean de tipo ‘org.springframework.mail.javamail.JavaMailSender’ en su configuración. ejemplo de código

Ejemplo 1: El campo emailSender en com.optum.link.security.importer.utils.SendMail requería un bean de tipo ‘org.springframework.mail.javamail.JavaMailSender’ que no se pudo encontrar.

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.

Ejemplo 2: enviar correo usando Spring Boot

private void sendmail() throws AddressException, MessagingException, IOException {
   Properties props = new Properties();
   props.put("mail.smtp.auth", "true");
   props.put("mail.smtp.starttls.enable", "true");
   props.put("mail.smtp.host", "smtp.gmail.com");
   props.put("mail.smtp.port", "587");
   
   Session session = Session.getInstance(props, new javax.mail.Authenticator() {
      protected PasswordAuthentication getPasswordAuthentication() {
         return new PasswordAuthentication("[email protected]", "<your password>");
      }
   });
   Message msg = new MimeMessage(session);
   msg.setFrom(new InternetAddress("[email protected]", false));

   msg.setRecipients(Message.RecipientType.TO, InternetAddress.parse("[email protected]"));
   msg.setSubject("Tutorials point email");
   msg.setContent("Tutorials point email", "text/html");
   msg.setSentDate(new Date());

   MimeBodyPart messageBodyPart = new MimeBodyPart();
   messageBodyPart.setContent("Tutorials point email", "text/html");

   Multipart multipart = new MimeMultipart();
   multipart.addBodyPart(messageBodyPart);
   MimeBodyPart attachPart = new MimeBodyPart();

   attachPart.attachFile("/var/tmp/image19.png");
   multipart.addBodyPart(attachPart);
   msg.setContent(multipart);
   Transport.send(msg);   
}

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