[BBLISA] ISPs with p=reject DMARC policies?

[John Miller]

Hi Steven,

Much appreciated - I wasn't aware that ARC was submitted for RFC.  I've got
some reading to do!

We're actually running Sympa, but I imagine it has similar features as
Mailman.  Depending on how large a problem this becomes for us, we very
well may configure things to handle DKIM properly--I'd prefer it that way;
it's just a question of time.

John

On Tue, Oct 4, 2016 at 7:01 PM, Steven M Jones <smj at crash.com> wrote:

> On 10/04/16 12:59, John Miller wrote:
> > What I am curious about is if any other ISPs have taken up the
> > p=reject gauntlet in the past year or so.  I haven't seen any big news
> > about it, but I'm not touching mail servers on a daily basis.  Any of
> > you who are: are their other ISPs we need to be concerned with other
> > than Yahoo and AOL?
>
> Probably not yet, if you're just looking at North America. A number of
> mailbox providers of one type or another around the world have done
> similar things in the past two years - Mail.ru, LaPoste.net in France -
> and some in the US (GMail) have said they'll follow suit... soon.
>
> I expect "soon" to be defined when the ARC protocol
> (http://arc-spec.org) or something similar has implementations available
> in the field. It's very close, but it isn't quite there yet.
>
> In the meantime the Mailman list manager offers several workarounds for
> these situations in version 2.1.19 and later, but people are
> understandably irritated when those options mean changing the behavior
> of an existing list. Others take umbrage at the workarounds themselves.
> (Example: changing the address portion of the From: header to be the
> list address instead of the original author.)
>
> Configuring a list so that it doesn't make changes that break DKIM
> signatures from the original author's domain would obviate the need for
> all this, but people like their subject tags and footers...
>
> --Steve.
>
> "Chaos will ensue if the variable i is altered..." - SysV Programmers Guide
>
>
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