[OSM-talk] weird "excessive bounces" warnings from the list

[David Earl]

Lots of OSM email list mail ends up in my GMail spam. AFAICS this is
because the remailer doesn't deal with DKIM headers properly (it changes
the signed content, To: for example, so the signature test fails) and some
providers (btmail for example) have DMARC records which force the rejection
of such emails by the recipient, and even if they don't the dkim failure
can increase the spam score over the threshold. The envelope-from seems to
be correct so that it sees osm as the sender (even though that's not what
From: says) and so uses OSM's SPF correctly.

David

On Tue, 2 Oct 2018 at 07:05, Tom Hughes <tom at compton.nu> wrote:

> On 02/10/2018 04:21, Paul Johnson wrote:
>
> > Only if the sender is sending from a server other than their normal mail
> > server, something readily detectable in the headers.  Google seems to
> > use the same strategy as I did running my own mail server for about 12
> > years before moving to gsuite, which is, hey, not totally
> > standards-compliant, since it'll go through DATA before deciding whether
> > or not to accept or reject, but very workable to give the sender some
> > idea what happened.
>
> Once it has gone through the list it appears to be being sent from
> our mail server.
>
> Tom
>
> --
> Tom Hughes (tom at compton.nu)
> http://compton.nu/
>
> _______________________________________________
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> talk at openstreetmap.org
> https://lists.openstreetmap.org/listinfo/talk
>
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