SMTP / POP3 / IMAP Mail Server for Windows

I'm looking for a relatively inexpensive (or free) POP3 mail server for Windows Server that will scale well. Compatible with SQL Server would be fantastic. It would also be great if it had a .net class library for performing simple functions like creating/deleting new accounts, adding aliases, etc.

Any ideas would be greatly appreciated.

Thanks!

From stackoverflow

• Google Search turned this up (It's freeware):

  http://www.hmailserver.com/

  Also see this other topic:

  http://stackoverflow.com/questions/249047/smtp-and-imap-server-library-for-net

  Andrew : Looking it over, it supports everything you wanted and more. Even has support for Active-Directory built-in.

  EGA : I ran into this one in a thread I saw earlier today. Wonder if there is anything else that fits the bill that I could compare this one to? Thanks for the help!

  Andrew : Not really sure. I just learned everything I know about it in the past 20 minutes. Personally, I've never had to setup a mail server on Windows. I've always used linux servers. Sorry I couldn't be more help.

• Also, a free 'combo' pack. Use VMWare Server, which is free, with Ubuntu, which is free and Zimbra network edition, also free. Zimbra will include POP3, IMAP, calendaring, task lists, and a full web interface if you need it.

  A fantastic little package

  www.vmware.com www.ubuntu.com www.zimbra.com

• Highly recommend MailEnable. www.mailenable.com