Hi! I'm currently using exim 4.72 with DKIM active. I recognized recently that I've many entries in my logfile with failed signatures from prominent domains like paypal,gmail,yahoo. Many of them are results from changes done by mailinglists. But in case of paypal I can't see the cause.
My big problem is debugging with mails from paypal. All I currently know is that verifying the same incoming mail fails in exim, but succeeds in SpamAssassin. I've only logfile entries and headers. I've currently no sample for debugging purposes I can share. eg: Jan 10 18:39:39 ray exim[26539]: 1PcLiU-0006u3-8u DKIM: d=paypal.de s=dkim c=relaxed/relaxed a=rsa-sha1 [email protected] t=1294681175 [verification failed - signature did not verify (headers probably modified in transit)] Jan 10 18:39:39 ray exim[26539]: 1PcLiU-0006u3-8u H=mx0.phx.paypal.com (mx0.phx.paypal.com) [66.211.168.230] Warning: DKIM: header.i=paypal.de adsp:dkim=discardable result:fail signature_incorrect Jan 10 18:39:39 ray exim[26539]: 1PcLiU-0006u3-8u H=mx0.phx.paypal.com (mx0.phx.paypal.com) [66.211.168.230] Warning: DKIM: [email protected] adsp:unknown result:fail signature_incorrect Jan 10 18:39:41 ray exim[26539]: 1PcLiU-0006u3-8u <= [email protected] H=mx0.phx.paypal.com (mx0.phx.paypal.com) [66.211.168.230] P=esmtp S=19933 [email protected] The signature contained: DKIM-Signature: v=1; a=rsa-sha1; d=paypal.de; s=dkim; c=relaxed/relaxed; q=dns/txt; [email protected]; t=1294681175; h=From:Subject:Date:To:MIME-Version:Content-Type; bh=xnZHiPMh3KOTEU9BC1ubRoNhqe0=; ..... The same message/signature verified in SpamAssassin: Jan 10 18:39:39 ray spamd[17424]: spamd: checking message <[email protected]> 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=<[email protected]>,... Does somebody else see these failed sigs from paypal? Greetings, Wolfgang -- Wolfgang Breyha <[email protected]> | http://www.blafasel.at/ Vienna University Computer Center | Austria -- ## List details at http://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
