Q1. How does Spring support email sending?
Spring provides a
It abstracts the underlying JavaMail API, making it easier to send simple or MIME messages.
You configure a mail sender bean with host, port, credentials, etc.
MailSender interface (JavaMailSenderImpl) for sending emails.It abstracts the underlying JavaMail API, making it easier to send simple or MIME messages.
You configure a mail sender bean with host, port, credentials, etc.
Q2. What is JavaMailSender?
It's typically implemented by
It can send
JavaMailSender is a subinterface of MailSender that adds support for MIME messages and more.It's typically implemented by
JavaMailSenderImpl.It can send
SimpleMailMessage or MimeMessage.Q3. How do you send a simple email using Spring?
Configure
JavaMailSender bean, then use it:SimpleMailMessage message = new SimpleMailMessage();
message.setTo("to@example.com");
message.setSubject("Test");
message.setText("Hello");
mailSender.send(message);
Q4. What configuration is needed for email in Spring Boot?
Add
In
Spring Boot auto-configures
spring-boot-starter-mail dependency.In
application.properties, set spring.mail.host, spring.mail.port, spring.mail.username, spring.mail.password, etc.Spring Boot auto-configures
JavaMailSender bean.Q5. How do you handle email sending asynchronously?
You can use
Enable
@Async with a thread pool to send emails asynchronously to avoid blocking the main thread.Enable
@EnableAsync and annotate a service method with @Async.