Re: [exim] paypal DKIM verification fails sometimes

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Author: Todd Lyons
Date:  
To: Wolfgang Breyha
CC: exim-users
New-Topics: [exim] DKIM verification fails sometimes (was: paypal DKIM verification fails sometimes)
Subject: Re: [exim] paypal DKIM verification fails sometimes
On Mon, Jan 10, 2011 at 2:02 PM, Wolfgang Breyha <wbreyha@???> wrote:
> Hi!
>
> I'm currently using exim 4.72 with DKIM active. I recognized recently that


4.73 here, but AFAIK, no dkim changes are present.

> The same message/signature verified in SpamAssassin:
> Jan 10 18:39:39 ray spamd[17424]: spamd: checking message
> <1294681175.5023@???> for spamass:104
> Jan 10 18:39:41 ray spamd[17424]: spamd: result: . -16 -
> DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,...
> scantime=1.8,size=18482,...,mid=<1294681175.5023@???>,...
>
> Does somebody else see these failed sigs from paypal?


75 messages so far today from paypal.com, all of them passed dkim
signature check in both exim libraries and spamassassin. If you wish
to compare source addresses, here's a snipped from one mail server:

# grep paypal.com /var/log/exim/main.log | grep \<= | cut -d \ -f 6-8
| sed -e 's/P=esmtp//' | sort

H=mx0.phx.paypal.com [66.211.168.230]
H=mx0.phx.paypal.com [66.211.168.230]
H=mx0.phx.paypal.com [66.211.168.230]
H=mx0.phx.paypal.com [66.211.168.230]
H=mx0.phx.paypal.com [66.211.168.230]
H=mx0.phx.paypal.com [66.211.168.230]
H=mx0.phx.paypal.com [66.211.168.230]
H=mx0.phx.paypal.com [66.211.168.230]
H=mx0.phx.paypal.com [66.211.168.230]
H=mx0.phx.paypal.com [66.211.168.230]
H=mx0.phx.paypal.com [66.211.168.230]
H=mx0.phx.paypal.com [66.211.168.230]
H=mx0.phx.paypal.com [66.211.168.230]
H=mx0.phx.paypal.com [66.211.168.230]
H=mx0.phx.paypal.com [66.211.168.230]
H=mx0.phx.paypal.com [66.211.168.230]
H=mx0.phx.paypal.com [66.211.168.230]
H=mx0.phx.paypal.com [66.211.168.230]
H=mx0.phx.paypal.com [66.211.168.230]
H=mx0.phx.paypal.com [66.211.168.230]
H=mx0.phx.paypal.com [66.211.168.230]
H=mx0.phx.paypal.com [66.211.168.230]
H=mx0.phx.paypal.com [66.211.168.230]
H=mx0.phx.paypal.com [66.211.168.230]
H=mx1.phx.paypal.com [66.211.168.231]
H=mx1.phx.paypal.com [66.211.168.231]
H=mx1.phx.paypal.com [66.211.168.231]
H=mx1.phx.paypal.com [66.211.168.231]
H=mx1.phx.paypal.com [66.211.168.231]
H=mx1.phx.paypal.com [66.211.168.231]
H=mx1.phx.paypal.com [66.211.168.231]
H=mx1.phx.paypal.com [66.211.168.231]
H=mx1.phx.paypal.com [66.211.168.231]
H=mx1.phx.paypal.com [66.211.168.231]
H=mx1.phx.paypal.com [66.211.168.231]
H=mx1.phx.paypal.com [66.211.168.231]
H=mx1.phx.paypal.com [66.211.168.231]
H=mx1.phx.paypal.com (mx0.phx.paypal.com) [66.211.168.231]
H=mx1.phx.paypal.com (mx0.phx.paypal.com) [66.211.168.231]
H=mx1.phx.paypal.com (mx0.phx.paypal.com) [66.211.168.231]
H=mx1.phx.paypal.com (mx0.phx.paypal.com) [66.211.168.231]
H=mx1.phx.paypal.com (mx0.phx.paypal.com) [66.211.168.231]
H=outbound1.den.paypal.com [216.113.188.96]
H=outbound1.den.paypal.com (outbound2.den.paypal.com) [216.113.188.96]
H=outbound1.den.paypal.com (outbound2.den.paypal.com) [216.113.188.96]
H=outbound2.den.paypal.com [216.113.188.112]
H=outbound2.den.paypal.com (outbound1.den.paypal.com) [216.113.188.112]
H=outbound2.den.paypal.com (outbound1.den.paypal.com) [216.113.188.112]

--
Regards...      Todd
I seek the truth...it is only persistence in self-delusion and
ignorance that does harm.  -- Marcus Aurealius