[Bug 296629] New: kmail-4.8.1 uses quoted-printable encoded composite mime parts, violating RFC2045

[Dennis Schridde]

https://bugs.kde.org/show_bug.cgi?id=296629

            Bug ID: 296629
          Severity: normal
           Version: 4.8
          Priority: NOR
          Assignee: kdepim-bugs at kde.org
           Summary: kmail-4.8.1 uses quoted-printable encoded composite
                    mime parts, violating RFC2045
    Classification: Unclassified
                OS: Linux
          Reporter: devurandom at gmx.net
          Hardware: Other
            Status: UNCONFIRMED
         Component: composer
           Product: kmail2

listserv.fnal.gov replies to my messages sent with kmail-4.8.1:
---
Your message contains a QUOTED-PRINTABLE encoded composite MIME part, which is
not allowed by Internet standards (see  RFC2045, section 6.4, paragraph 5). In
plain English, an error in your mail program, or in a firewall or mail gateway
between your computer and LISTSERV, has caused  an error in the format of your
message.
---

It refers to this paragraph:
---
   Certain Content-Transfer-Encoding values may only be used on certain
   media types.  In particular, it is EXPRESSLY FORBIDDEN to use any
   encodings other than "7bit", "8bit", or "binary" with any composite
   media type, i.e. one that recursively includes other Content-Type
   fields.  Currently the only composite media types are "multipart" and
   "message".  All encodings that are desired for bodies of type
   multipart or message must be done at the innermost level, by encoding
   the actual body that needs to be encoded.
---

The quoted message listserv attached shows that kmail did indeed violate this:
---
Content-Type: multipart/signed; boundary="..."; micalg="pgp-sha1";
protocol="application/pgp-signature"
Content-Transfer-Encoding: quoted-printable
---

This is the same as Akonadi saved in my sent folder, so I can exclude a bug in
a mail gateway.

The issue did not happen with kmail-4.8.0 or 4.7.4.

-- 
You are receiving this mail because:
You are the assignee for the bug.