Re: Coding system for outgoing mail

[konrad . hinsen]

> > Then I disabled that line and checked what happens when I insert
> > the signature by hand (C-c C-w). Before inserting the signature,
> > describe-coding-system says "none, use default". After inserting
> > the signature, it says "no conversion (binary)".
> 
> What happens if you insert the signature file by this?
>       C-x i ~/.signature RET

Same effect, the coding system is changed to "no conversion (binary)".

> And what happens if you start emacs with -q --no-site-file
> and type C-c C-w to insert the signature file?

Before inserting, there is no buffer-specific coding system. After
inserting, it is "undecided-unix".

The line in .emacs that causes the change from "undecided-unix"
to "no conversion (binary)" is

  (require 'crypt)

However, the file .signature is neither compressed nor encrypted in any
way, so crypt mode should not become active.

> Do they also change buffer-file-coding-system?

Yes.

> Do they also change buffer-file-coding-system when you
> insert it not in *mail* buffer, but *scratch* buffer?

Yes.

> And, to which function C-c C-w is bound, and in which file
> that function is defined?  In my case, it is
> `mail-signature' defined in lisp/mail/sendmail.el.

On my system it is the same.

Konrad.
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