Where is the official, extensive, complete documentation on web.config?

I'm trying to find about ALL the possible options that I can set in web.config.
Surprisingly, I can't find this at all (i'm expecting it to be somewhere inside msdn.microsoft.com)

I know I can technically add "anything" to web.config, what i'm looking for is the things that the .Net Framework "as shipped" uses.

In particular, right now i'm interested in the <mailsettings> section.
For example, in many examples i've found, i noticed that they set DeliveryMethod="Network". I'm really curious what other values this attribute can take.

Is there any document on all the attributes and all their values, and all the effects those have?

Thanks!

From stackoverflow Daniel Magliola

• It all starts on http://msdn.microsoft.com/en-us/library/zeshe0eb.aspx :

  • <system.web>
  • <system.web.extensions>
  • <appSettings>
  • <configSections>
  • <connectionStrings>
  Daniel Magliola : Thank you very much. You rock.

  DOK : Thanks for plowing through that frustrating MSDN forest for us!
  From Mark Cidade

• This might be what you're after (not all in one page), but the top of the schema - drill down recursively to find it all :)

  ASP.NET Configuration Settings

  From Jon Skeet

• I also found this, specifically for the <mailsettings> section:

  http://msdn.microsoft.com/en-us/library/w355a94k.aspx

  From Daniel Magliola

• That's like asking where is the official documentation for *.txt files. It depends on the web site they are supposed to configure. Every app can have its own custom config sections, and in fact, most do.

  DOK : Do you think your answer is adding value to the discussion here? Perhaps you would benefit from reading through a few more questions and answers before you start putting people down for asking questions. See how many people have responded?

  dviljoen : "putting people down for asking questions"?????? Wuh? How did I do that? I was hoping to point out that web.config is a generic solution to common problem and asking what does it contain is a loaded question. Sorry if it came across as condescending, but quite frankly, I don't see how.
  From dviljoen