Introduction

A simple example to simulate pop3 and smtp command modes. Reference RFC1939 and RFC821.

Usage

• mvn package
• start server :java -jar .\target\EmailServer-jar-with-dependencies.jar
• Open a new terminal and telnet localhost 25 to connect to the SMTP server.
• Open a new terminal and telnet localhost 110 to connect to the POP3 server.

More info

I hardcoded the SMPT server address to smtp.fyc.com and the POP3 address to pop.fyc.com. This means that emails such as xxx@fyc.com are stored on this fake server and subsequent POP3s are pulled based on this email suffix as well. Again, for convenience, I hard-coded the accounts, which I know isn't good.

• username ： sloth@fyc.com
• password : 123