[exim] DKIM verification fails sometimes (was: paypal DKIM verification fails sometimes)

Autor: Wolfgang Breyha
Data:
A: exim-users
Assumptes vells: Re: [exim] paypal DKIM verification fails sometimes
Assumpte: [exim] DKIM verification fails sometimes (was: paypal DKIM verification fails sometimes)

Hi!

The paypal.de Mail verified in Mail::DKIM because it contained a valid
DomainKeys Sig, too. The DKIM sig is broken.

Nevertheless I found a bug in the DKIM implementation of exim, too.
http://bugs.exim.org/show_bug.cgi?id=1067

Headerlines with trailing white space characters are handled wrong and
break signature verification for "relaxed headers" messages.

Regards, Wolfgang
--
Wolfgang Breyha <wbreyha@???> | http://www.blafasel.at/
Vienna University Computer Center | Austria

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[exim] DKIM verification fails sometimes (was: paypal DKIM …