Thanks for your report.
The error is:
=
Setting up nullmailer (1:1.04-1) ...
dpkg: error processing nullmailer (--configure):
subprocess post-installation script returned error exit status 1
=
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nullmailer package installaion
https://bugs.launchpad.net/bugs/295253
You received this bug
** Attachment added: "Dependencies.txt"
http://launchpadlibrarian.net/19465015/Dependencies.txt
** Attachment added: "DpkgTerminalLog.txt"
http://launchpadlibrarian.net/19465016/DpkgTerminalLog.txt
--
nullmailer package installaion
https://bugs.launchpad.net/bugs/295253
You received this
