Setting Up Email on Server 2008 R2

I have server 2008 r2 and I'd like to setup email accounts. What is the best way to do this?

I don't have the option of getting exchange server or anything else as I already have 2008 r2. Based upon my basic google searches it doesn't appear as though r2 comes with pop or imap. Is there a different way I'm supposed to be going about an email server? SMTP is about all I can find and that doesn't allow for remote access or anything useful really.

This is for a side project on my own time, so its not mission critical, but I would like something that would allow people to login using thunderbird or outlook or whatever they use.

From serverfault James

• We host mail for quite a few of our domains away from our main Exchange system.

  I looked at a few email server programs and it came down to hMailServer or MailEnable, both of which are free and both of which should do what you want.

  I chose hMail because it made some specific things I wanted to do simpler, but I doubt you'd have a problem with either.

  From Hutch

• Years ago I had tried Mercury (from the author of Pegaus Mail).

  From adamo

• I've used Mercury Mail for 10 years.

  From Keith Stokes

• The correct full name is Mercury/32, which includes POP, IMAP and SMTP.

  From