how to build a mail server in java

Question

greetings all i have an app(spring+hibernate) that needs to send thousands of emails simultaneously and i was told that the best solution here is to have a mail server i don't have any idea where to start or if there's a framework or a service that is better so please guys give me some info where to start, thank you.

Answer 1

You don't build a mail server. You use the JavaMail API to access a mail server (SMTP server) in order to send emails. Here is an explanation of the JavaMail API.