You didn't need to rant to get my attention. Just a nice calm camomile-tea message would have sufficed. And an Answer could've been used if a comment wasn't enough. But with 41.5K rep, I don't need to teach you to suck eggs ey? ;)

@EEAA Not quite, maybe in a roundabout way. Your two comments were ranty and said "if you're on a dynamic IP address, you might as well just forget about doing that".

Thanks for all the answers on here, but I think four downvotes is harsh. I think the meta question was valid, even if the serverfault question wasn't. Technical fiefdom arrogance at its best. I'll stick to .NET dev. Pays better anyway ;)

I'm going to accept your answer, simply because you mentioned the one major technical pitfall that I neglected. "email to break - if not by ISP policy then by DNS records outliving your IP address and sending mail to nobody-knows-where." This is the one thing that I have no control over with a dynamic IP and probably the best reason to ditch this whole idea altogether.

Thanks, in a way, for nothing (I jest). But, never did I "admit" that I was doing this in a home environment, so you've got that little fact wrong. This is at a business address, so I would never have said it's in a home environment in any case. Anyhow, I currently have the 1&1 Business Package which is a shared server, but still gives me some flexibility to tinker around. I just wanted to learn a bit more about running my own servers (web, mail, etc.) to gain more knowledge of the "nuances" involved. For the reasons I mentioned in my reply to Scott Pack's answer, I'll stick with 1&1 for now.

Thanks for your detailed answer. Your answer clearly outlines the non-compliance of my Question with the FAQ (the four bullet points you listed). Your answer together with the others has convinced me that I would be best sticking with my 1&1 host for website and e-mail (Exchange) for enterprise application. 1) It seems I won't really learn what I'm expecting to learn on a Synology NAS, and 2) Due to (1), I'll be wasting a whole lot of my time which is worth a lot more than the monthly cost to use a proper host like 1&1. Thanks for your help. I'll upvote you, but I'm accepting another answer.