I invite you to look at hMailServer. I set this up when I had a reasonable clue about SMTP and only a vague understanding of POP3 or IMAP. Let alone how spam filters worked ("they look at words like viagra" was my understanding) or what mailing lists are.
It's really a Windows-like utility in the sense of next-next-next-finish. By now I despise most Windows Server wizards for not being flexible enough and prefer command line tools on GNU/Linux, but this mail server is one thing I just cannot find a good replacement for, and the interface provides everything I need (no need for command line or config file magic).