Importing patches from email, which address?

When working with the list of author emails for the kernel, I noticed that a lot of the author's email address are from internal mail servers. How is the handled in git (stgit, etc..)? Is the import using the email From:, would it be better to use Reply-to:?

On 2008-07-28 12:59:24 -0400, Jon Smirl wrote:

I believe all relevant tools use the From: header (unless it's overridden by a From: in the message body). I think this is how Linus originally wanted it to work -- in the first linux-kernel commit his e-mail is torvalds@ppc970.osdl.org, and I seem to recall him saying something along the lines of this being a feature: others could see which machine he commited on, and the e-mail should really be considered more of a unique identifier than an actual real e-mail address.

Not sure if the policy has changed since then, though.