My Ubuntu has the described bug: error 2 on sending e-mail.

Command 2004 of 10 $dpkg -s shutter
Package: shutter
Status: install ok installed
Priority: optional
Section: graphics
Installed-Size: 17230
Maintainer: Ubuntu Developers <email address hidden>
Architecture: all
Version: 0.93.1-1ubuntu1
Depends: libgtk2-perl, libglib-perl, libgnome2-perl, libgnome2-vfs-perl, libgnome2-wnck-perl, libgnome2-gconf-perl, liblocale-gettext-perl, libxml-simple-perl, libwww-mechanize-perl, libwww-perl, perlmagick, libx11-protocol-perl, librsvg2-common, libfile-basedir-perl, libfile-copy-recursive-perl, libproc-simple-perl, libfile-which-perl, libsort-naturally-perl, libgtk2-imageview-perl, libnet-dbus-perl, libgnome2-canvas-perl, imagemagick, libgtk2-unique-perl, libproc-processtable-perl, procps, xdg-utils, libpath-class-perl, libjson-perl, libjson-xs-perl, libnet-dropbox-api-perl
Recommends: libgoo-canvas-perl, libgtk2-appindicator-perl
Suggests: gnome-web-photo, nautilus-sendto, libimage-exiftool-perl, libnet-dbus-glib-perl
Description: feature-rich screenshot program
 Shutter is a feature-rich screenshot program. You can take a
 screenshot of a specific area, window, your whole screen, or even of
 a website - apply different effects to it, draw on it to highlight
 points, and then upload to an image hosting site, all within one
 window.
 .
 Features:
    * take a screenshot of your complete desktop, a rectangular area
      or capture a website
    * take screenshot directly or with a specified delay time
    * save the screenshots to a specified directory and name them in a
      convenient way (using special wild-cards)
    * Shutter is fully integrated into the GNOME Desktop (TrayIcon etc.)
    * generate thumbnails directly when you are taking a screenshot
      and set a size level in %
    * Shutter session collection
          o keep track of all screenshots during session
          o copy screeners to clipboard
          o print screenshots
          o delete screenshots
          o rename your file
    * upload your files directly to Image-Hosters (e.g. imgur.com), retrieve
      all the needed links and share them with others
    * edit your screenshots directly using the embedded drawing tool
Homepage: http://shutter-project.org/
Original-Maintainer: Ryan Niebur <email address hidden>

Command 2005 of 11 $lsb_release 
LSB Version:	core-9.20160110ubuntu0.2-amd64:core-9.20160110ubuntu0.2-noarch:security-9.20160110ubuntu0.2-amd64:security-9.20160110ubuntu0.2-noarch

Command 2007 of 13 $dpkg -s xdg-utils 
Package: xdg-utils
Status: install ok installed
Priority: optional
Section: utils
Installed-Size: 302
Maintainer: Ubuntu Developers <email address hidden>
Architecture: all
Multi-Arch: foreign
Version: 1.1.1-1ubuntu1.16.04.1
Recommends: libfile-mimeinfo-perl, libnet-dbus-perl, libx11-protocol-perl, x11-utils, x11-xserver-utils
Suggests: gvfs-bin
Description: desktop integration utilities from freedesktop.org
 xdg-utils contains utilities for integrating applications with the
 desktop environment, regardless of which desktop environment is used.
 They are part of freedesktop.org's Portland project.
 .
 The following utilities are included:
 .
 * xdg-desktop-menu - Install desktop menu items
 * xdg-desktop-icon - Install icons on the user's desktop
 * xdg-email - Compose a new email in the user's preferred email client,
   potentially with subject and other info filled in
 * xdg-icon-resource - Install icon resources
 * xdg-mime - Query and install MIME types and associations
 * xdg-open - Open a URI in the user's preferred application that
   handles the respective URI or file type
 * xdg-screensaver - Enable, disable, or suspend the screensaver
 * xdg-settings - Get or set the default web browser and URI handlers
 .
 If you are running GNOME, make sure that the gvfs-bin package is
 installed.
Homepage: http://www.freedesktop.org/wiki/Software/xdg-utils/
Original-Maintainer: Per Olofsson <email address hidden>