Hi, a couple of days ago, people using MS Outlook started complaing that my messages looked "strange". I asked for an example and received this:
> > Subject: Re: Finanzierung > > > > MIME-Version: 1.0 > > Content-Type: multipart/signed; micalg=pgp-sha512; > > protocol="application/pgp-signature"; boundary="Zd5+bFLIq/fPSfy5" > > > > --Zd5+bFLIq/fPSfy5 > > Content-Type: text/plain; charset=utf-8 > > Content-Disposition: inline > > Content-Transfer-Encoding: quoted-printable > > > > Lieber xxxxx, > > > > vielen Dank. Wenn wir die Parallelit=C3=A4t ... The headers below the Subject header are visible to the recipient, and the quoted-printable content is not unquoted by the client. The message in question is PGP signed and properly displayed in mutt (of course) and Apple Mail. The source of the message (as received via MS Exchange) looks like this: > Subject: Re: Finanzierung > Message-ID: <y43yrycxgmnw1...@hs-duesseldorf.de> > References: <y42yhuzsvjdzh...@hs-duesseldorf.de> > <a89352339ae0469aad0431a2f86b4...@hs-duesseldorf.de> > Content-Type: multipart/signed; micalg=pgp-sha512; > protocol="application/pgp-signature"; boundary="Zd5+bFLIq/fPSfy5" > Content-Disposition: inline > In-Reply-To: <a89352339ae0469aad0431a2f86b4...@hs-duesseldorf.de> > Return-Path: my.addr...@hs-duesseldorf.de > X-MS-Exchange-Organization-Network-Message-Id: > eededcf1-f439-486e-1257-08dad6c4c55a > X-MS-Exchange-Organization-AuthSource: zvexch6.IT.lan > X-MS-Exchange-Organization-AuthAs: Internal > X-MS-Exchange-Organization-AuthMechanism: 07 > X-Originating-IP: [10.5.7.121] > X-ClientProxiedBy: zvexch6.IT.lan (10.5.7.76) To zvexch6.IT.lan (10.5.7.76) > X-MS-Exchange-Organization-AVStamp-Enterprise: 1.0 > X-MS-Exchange-Organization-Recipient-P2-Type: Bcc > X-MS-Exchange-Transport-EndToEndLatency: 00:00:00.3281613 > X-MS-Exchange-Processed-By-BccFoldering: 15.01.2507.016 > MIME-Version: 1.0 > X-TUID: pVjn50NSefgW > > --Zd5+bFLIq/fPSfy5 > Content-Type: text/plain; charset=utf-8 > Content-Disposition: inline > Content-Transfer-Encoding: quoted-printable > > Lieber xxxx, > > vielen Dank. Wenn wir die Parallelit=C3=A4t ... The issue only occurs with signed messages – sending the very same (plain text) message without the signature works fine for Outlook-using recipients. I have signed my messages for several months now, without any negative feedback – is anyone aware of recent changes in Outlook which might have caused this? - Jan
signature.asc
Description: PGP signature
