Author: Simon Arlott Date: To: exim-dev Subject: Re: [exim-dev] Mailop list: exim and google fighting over DKIM
On 29/04/2019 20:06, Graeme Fowler via Exim-dev wrote: > The gist of the discussion (I’m a mailop subscriber) is manyfold:
> 4. Signed messages inbound to mailop.org (and other lists!) from Debian-derived and other setups using the default macro defined in pdkim.h can have headers added which have been declared signed when they’re not present*
> * this is the bit I’m confused by; I have a large historical pile of messages to lists from me and I can’t see a signature with those headers included despite me using the defaults for a long period.
The list of headers has not changed but the behaviour has. I'm using
Exim 4.86.2 and it doesn't do this. The documented behaviour of the
latest version is that it will sign them if they're absent.
I use a custom pairing of IPv4-only followed by IPv4+IPv6 routers for
all hosts to avoid Google's actively hostile behaviour towards IPv6.