Re: ignore authenticated received chain (arc), and such headers in rmail

[Eli Zaretskii]

> From: address@hidden (Alfred M. Szmidt)
> Date: Sun, 07 May 2017 06:59:33 -0400
> 
> This ignores some new headers that have become popular by some smtp
> providers which are very verbose.  They are not very useful for the
> user, and just polute the buffer.
> 
> diff -u --label /home/ams/emacs/lisp/mail/rmail.el --label \#\<buffer\ 
> rmail.el\> /home/ams/emacs/lisp/mail/rmail.el /tmp/buffer-content-363vYs
> --- /home/ams/emacs/lisp/mail/rmail.el
> +++ #<buffer rmail.el>
> @@ -363,6 +363,7 @@
>         "\\|^importance:\\|^envelope-to:\\|^delivery-date\\|^openpgp:"
>         "\\|^mbox-line:\\|^cancel-lock:"
>         "\\|^DomainKey-Signature:\\|^dkim-signature:"
> +       "\\|^ARC-.*:"
> +       "\\|^Received-SPF:"
> +       "\\|^Authentication-Results:"
>         
> "\\|^resent-face:\\|^resent-x.*:\\|^resent-organization:\\|^resent-openpgp:"
>         "\\|^x-.*:"))
>    "Regexp to match header fields that Rmail should normally hide.

Fine with me, thanks.