Disclaimer: This is speculation on my part based on observed behaviour. I haven't checked the code. I'm having problems with SM not being able to read some forwarded mail. I've narrowed it down to it fudging things up whenever the Content-Transfer-Encoding needs to be respected. System info: SquirrelMail version: 1.4.19-2.fc10 Config file version: 1.4.0 PHP version 5.2.9 OK. Apache 2.2.14 Example 1: --MP_/o3O7jrc9fSPahrN_sey+cYI Content-Type: message/rfc822 Content-Transfer-Encoding: base64 Content-Disposition: inline UmVjZWl2ZWQ6IGJ5IG1haWwuY2VuZGlvLnNlIChQb3N0Zml4LCBmcm9tIHVzZXJpZCAxMDIpDQoJ aWQgRDQ4NjMxMzhFMzI7IFR1ZSwgMjMgTWFyIDIwMTAgMDk6NTQ6MDIgKzAxMDAgKENFVCkNClgt U3BhbS1DaGVja2VyLVZlcnNpb246IFNwYW1Bc3Nhc3NpbiAzLjIuNSAoMjAwOC0wNi0xMCkgb24g bWFvLmNlbmRpby5zZQ0KWC1TcGFtLUxldmVsOiANClgtU3BhbS1TdGF0dXM6IE5vLCBzY29yZT0t Mi43IHJlcXVpcmVkPTUuMCB0ZXN0cz1BV0wsQkFZRVNfMDAgYXV0b2xlYXJuPWhhbQ0KCXZlcnNp b249My4yLjUNClJlY2VpdmVkOiBmcm9tIG9zc21hbi5sa3BnLmNlbmRpby5zZSAoZG16LWd3LmNl bmRpby5zZSBbMTkzLjEyLjI1My45N10pDQoJYnkgbWFpbC5jZW5kaW8uc2UgKFBvc3RmaXgpIHdp dGggRVNNVFAgaWQgM0FFMEYxMzhFMzINCglmb3IgPG9zc21hbkBjZW5kaW8uc2U+OyBUdWUsIDIz IE1hciAyMDEwIDA5OjU0OjAyICswMTAwIChDRVQpDQpEYXRlOiBUdWUsIDIzIE1hciAyMDEwIDA5 OjU0OjAxICswMTAwDQpGcm9tOiBQaWVycmUgT3NzbWFuIDxvc3NtYW5AY2VuZGlvLnNlPg0KVG86 IG9zc21hbkBjZW5kaW8uc2UNClN1YmplY3Q6IEZvcndhcmRlZCBtYWlsDQpNZXNzYWdlLUlEOiA8 MjAxMDAzMjMwOTU0MDEuM2RlMTM3ZGRAb3NzbWFuLmxrcGcuY2VuZGlvLnNlPg0KT3JnYW5pemF0 aW9uOiBDZW5kaW8gQUINClgtTWFpbGVyOiBDbGF3cyBNYWlsIDMuNy40IChHVEsrIDIuMTYuNjsg eDg2XzY0LXJlZGhhdC1saW51eC1nbnUpDQpNaW1lLVZlcnNpb246IDEuMA0KQ29udGVudC1UeXBl OiB0ZXh0L3BsYWluOyBjaGFyc2V0PVVURi04DQpDb250ZW50LVRyYW5zZmVyLUVuY29kaW5nOiA4 Yml0DQoNClVuaWNvZGU6IMOlDQoNCi0tIA0KUGllcnJlIE9zc21hbiAgICAgICAgICAgIE9wZW5T b3VyY2UtYmFzZWQgVGhpbiBDbGllbnQgVGVjaG5vbG9neQ0KU3lzdGVtIERldmVsb3BlciAgICAg ICAgIFRlbGVwaG9uZTogKzQ2LTEzLTIxIDQ2IDAwDQpDZW5kaW8gQUIgICAgICAgICAgICAgICAg V2ViOiBodHRwOi8vd3d3LmNlbmRpby5jb20NCg== --MP_/o3O7jrc9fSPahrN_sey+cYI-- Result: SM shows no headers, and the base64 blob above as the body. Example 2: --MP_/eOTQotcY5ecL83ERqkl_AwR Content-Type: message/rfc822 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Received: by mail.cendio.se (Postfix, from userid 102) id D4863138E32; Tue, 23 Mar 2010 09:54:02 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on mao.cendio.se X-Spam-Level:=20 X-Spam-Status: No, score=3D-2.7 required=3D5.0 tests=3DAWL,BAYES_00 autolea= rn=3Dham version=3D3.2.5 Received: from ossman.lkpg.cendio.se (dmz-gw.cendio.se [193.12.253.97]) by mail.cendio.se (Postfix) with ESMTP id 3AE0F138E32 for <ossman@xxxxxxxxx>; Tue, 23 Mar 2010 09:54:02 +0100 (CET) Date: Tue, 23 Mar 2010 09:54:01 +0100 From: Pierre Ossman <ossman@xxxxxxxxx> To: ossman@xxxxxxxxx Subject: Forwarded mail Message-ID: <20100323095401.3de137dd@xxxxxxxxxxxxxxxxxxxxx> Organization: Cendio AB X-Mailer: Claws Mail 3.7.4 (GTK+ 2.16.6; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=3DUTF-8 Content-Transfer-Encoding: 8bit Unicode: =C3=A5 --=20 Pierre Ossman OpenSource-based Thin Client Technology System Developer Telephone: +46-13-21 46 00 Cendio AB Web: http://www.cendio.com --MP_/eOTQotcY5ecL83ERqkl_AwR-- Result: SM thinks everything up to "rn=3Dham" is headers and the rest is body. Conclusion: Based on this, I'm guessing that SM doesn't honour the content-transfer-encoding and just feeds the attachment as-is to the rfc822 parser. Rgds -- Pierre Ossman OpenSource-based Thin Client Technology System Developer Telephone: +46-13-21 46 00 Cendio AB Web: http://www.cendio.com
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