Bug#231873: kmail : unknown errorcode 50, Sending of mail failed

[Cornelius Weiss <nelius@von-und-zu-weiss.de>]

Package: kmail
Version: 4:3.2.1-1
Severity: normal
Followup-For: Bug #231873

This is the errormessage of kmail when trying to send a mail.
Other users can send 8-bit messages to the mailserver!

Sending failed:
Unknown error code 50
Your server does not support sending of 8-bit messages.
Please use base64 or quoted-printable encoding.
Please send a full bug report at http://bugs.kde.org.
The message will stay in the 'outbox' folder until you either fix the 
problem (e.g. a broken address) or remove the message from the 'outbox' 
folder.
The following transport protocol was used:
moni

-- System Information:
Debian Release: testing/unstable
  APT prefers unstable
  APT policy: (990, 'unstable')
Architecture: i386 (i686)
Kernel: Linux 2.6.0
Locale: LANG=C, LC_CTYPE=C

Versions of packages kmail depends on:
ii  kdebase-kio-plugins         4:3.2.1-1    KDE I/O Slaves
ii  kdelibs4                    4:3.2.1-1    KDE core libraries
ii  ktnef                       4:3.2.1-1    KDE TNEF viewer
ii  libart-2.0-2                2.3.16-3     Library of functions for 2D graphi
ii  libc6                       2.3.2.ds1-11 GNU C Library: Shared libraries an
ii  libfam0c102                 2.7.0-5      client library to control the FAM 
ii  libgcc1                     1:3.3.3-4    GCC support library
ii  libice6                     4.3.0-7      Inter-Client Exchange library
ii  libjpeg62                   6b-9         The Independent JPEG Group's JPEG 
ii  libkcal2                    4:3.2.1-1    KDE calendaring library
ii  libkdenetwork2              4:3.2.1-1    KDE Network library
ii  libkdepim1                  4:3.2.1-1    KDE PIM library
ii  libksieve0                  4:3.2.1-1    KDE mail/news message filtering li
ii  libmimelib1                 4:3.2.1-1    KDE mime library
ii  libpcre3                    4.5-1.1      Perl 5 Compatible Regular Expressi
ii  libpng12-0                  1.2.5.0-5    PNG library - runtime
ii  libqt3c102-mt               3:3.2.3-2    Qt GUI Library (Threaded runtime v
ii  libsm6                      4.3.0-7      X Window System Session Management
ii  libstdc++5                  1:3.3.3-4    The GNU Standard C++ Library v3
ii  libx11-6                    4.3.0-7      X Window System protocol client li
ii  libxext6                    4.3.0-7      X Window System miscellaneous exte
ii  libxrender1                 0.8.3-7      X Rendering Extension client libra
ii  xlibs                       4.3.0-7      X Window System client libraries m
ii  zlib1g                      1:1.2.1-5    compression library - runtime

-- no debconf information