Peter,
this email was marked as spam for me (and probably others) because of
this DKIM signature:
DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=pmeerw.net; s=mail;
....
where the problem is that when the message goes through the
vger.kernel.org mailing list machinery, the header whitespace will be
modified.
As a result, the DKIM signature no longer matched, and at least gmail
will consider the email to be spam.
That's arguably a bug in the vger mail server setup, but equally
arguably the "c=simple/simple" model of hashing in DKIM is just
broken, and shouldn't be used. Whitespace in SMTP headers is simply
not meaningful, and checking whitespace in them (like simple/simple
does) is misguided.
If you have control over the DKIM setup of pmeerw.net, may I suggest
changing the DKIM setup to use "c=relaxed/relaxed", which doesn't
invalidate the signature just for whitespace changes in the headers,
and which is the proper DKIM model to use. The simple canonicalization
really is too simple-minded for email.
Linus
On Tue, Feb 5, 2019 at 7:58 PM Peter Meerwald-Stadler <pme...@pmeerw.net> wrote:
>
> On Tue, 5 Feb 2019, Renato Lui Geh wrote:
>
> > Previously, the AD7780 driver only supported gpio for the 'powerdown'
> > pin. This commit adds suppport for the 'gain' and 'filter' pin.
>
> comments below
[...]
