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 expected it to be somewhere inside [MSDN](

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).

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?

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

[

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][1]


[1]:

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The links contained in the previous answers have gone bad, but this SO question is the second Google search result I got for "asp.net web.config documentation".

In the hopes of aiding the next searcher who comes through here looking for the official documentation, here is an msdn.microsoft.com link that (as of November 28th, 2012) works just fine:

[ASP.NET Configuration Settings][1]



[1]:

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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][1]


[1]:

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It all starts on

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:

* [`<system.web>`](

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)
* [`<system.web.extensions>`](

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)
* [`<appSettings>`](

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)
* [`<configSections>`](

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)
* [`<connectionStrings>`](

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)