Thanks for your report
The relevant error is:
---
Configurando postfix (2.6.5-3) ...
Postfix configuration was not changed. If you need to make changes, edit
/etc/postfix/main.cf (and others) as needed. To view Postfix configuration
values, see postconf(1).
After modifying main.cf, be sure to
** Attachment added: "Dependencies.txt"
http://launchpadlibrarian.net/40442533/Dependencies.txt
** Attachment added: "Dmesg.txt"
http://launchpadlibrarian.net/40442534/Dmesg.txt
** Attachment added: "DpkgTerminalLog.txt"
http://launchpadlibrarian.net/40442535/DpkgTerminalLog.txt
--
pa