I'm the author, and I'm writing this review to point out that this project has changed drastically. It used to be a crappy web crawler that was written more as an exercise than something that was intended to be useful. Now it's a super simple email server with support for SMTP, POP3, and webmail. It works great for local testing of web applications that send email. It's solid and works very well. The one star review was for the crappy web crawler, and it deserved it.