jvromans at squirrel.nl
Wed Sep 30 08:51:50 CEST 2015
On Wed, 30 Sep 2015 08:38:00 +0200
"Felipe T. Dorado" <ftdorado at ono.com> wrote:
> Ctrl+U gives us the source of the present message.
Ctrl+H will show you the headers in the message view.
> Where can I find the exact meaning of all the klutches (?) listed in the
> header of the source?
The official headers are defined in RFC2822. Amongst these are:
> Mime-Version: 1.0
> Content-Type: text/plain; charset=ISO-8859-15
> Content-Transfer-Encoding: quoted-printable
User agents (MUA, like Claws) and transport systems (MTA, like sendmail)
and virus scanners add their own headers, all prefixed with X- :
> X-Mailer: Claws Mail 3.8.1 (GTK+ 2.24.10; i486-pc-linux-gnu)
But all of the other headers (non X-...) should not be there since they
violate RFC2822. I've never seen them anywhere...
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