On 11/24/18 10:24 AM, André Rodier wrote: > On 2018-11-24 15:16, Richard Damon wrote: >> On 11/24/18 9:41 AM, André Rodier wrote: >>> Hello, >>> >>> I have a program (SOGo), installed on my mail server, that send emails >>> using the quoted-printable encoding for From/To headers. >>> >>> Unfortunately, none of the email clients I use seems to display them >>> correctly: >>> >>> ------------------------------------------------------- >>> From =?utf-8?q?Andr=C3=A9?= Rodier <an...@rodier.me> >>> To =?utf-8?q?Andr=C3=A9?= Rodier <an...@rodier.me> >>> ------------------------------------------------------- >>> >>> Is there any reason for that ? >>> is a header missing: >>> >>> Thanks for your help >>> >>> André Rodier >>> >> First, are your clients compliant with the RFC that define encoding of >> headers (which are later/less supported than those that define the >> encoding of the body)? >> >> For example, RFC 2047 (I think the latest RFC that defines this >> encoding). I don't think you need any header to enable this support, >> just a compliant MUA. > > Thanks for your answer. > > I would think it is a bug in the SOGo software, because other emails > are using quoted-printable too, but are displayed correctly, for > instance this one: > > ------------------------------------------------------------------------ > Return-Path: <an...@rodier.me> > Received: from osaka.rodier.me > by osaka.office.pmc with LMTP id 0P2UH/1p+VvAFAAAnYgw/w > ; Sat, 24 Nov 2018 15:10:53 +0000 > Received: from osaka.rodier.me (localhost [127.0.0.1]) > by osaka.rodier.me (Postfix) with ESMTP id 6406A2063B > for <an...@rodier.me>; Sat, 24 Nov 2018 15:10:53 +0000 (GMT) > Received: by osaka.rodier.me (Postfix, from userid 132) > id 431B720662; Sat, 24 Nov 2018 15:10:53 +0000 (GMT) > Content-Type: text/html; charset="utf-8" > To: =?utf-8?q?Andr=C3=A9_Rodier?= <an...@rodier.me> > MIME-Version: 1.0 > Date: Sat, 24 Nov 2018 15:10:53 +0000 > Subject: The event =?utf-8?q?=22Hello=22?= was created > Message-ID: <1403-5bf96a00-5-79d0b280@98295310> > From: =?utf-8?q?Andr=C3=A9_Rodier?= <an...@rodier.me> > X-AV-Checked: ClamSMTP (Client IP: 127.0.0.1) > ------------------------------------------------------------------------ > > Fortunately, Thunderbird, Evolution and Roundcube are behaving the same. > > I use Thunderbird myself, and your message displays fine. The one difference I see is that the character set and encoding in your mail client is coming in upper case, while the example has it in lower case. I thought the RFC said that this was case insensitive, but maybe some implementations are case sensitive.
-- Richard Damon
