package qmail 1.06-4 failed to install/upgrade: el subproceso instalado el script post-installation devolvió el código de salida de error 1

[Ramón Molina Castillo]

He actualizado a ubuntu 12.04 desde ubuntu 11.10 y, al hacerlo, me dio errores. Al ejecutar synaptics me sale siempre un error al ejecutar qmail y qmail-run por problemas de dependencias.

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: qmail 1.06-4
ProcVersionSignature: Ubuntu 3.2.0-24.37-generic-pae 3.2.14
Uname: Linux 3.2.0-24-generic-pae i686
ApportVersion: 2.0.1-0ubuntu6
AptOrdering:
 qmail: Configure
 qmail-run: Configure
Architecture: i386
Date: Sat Apr 28 02:10:02 2012
ErrorMessage: el subproceso instalado el script post-installation devolvió el código de salida de error 1
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
SourcePackage: netqmail
Title: package qmail 1.06-4 failed to install/upgrade: el subproceso instalado el script post-installation devolvió el código de salida de error 1
UpgradeStatus: Upgraded to precise on 2012-04-27 (0 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Juan Martin Sanchez Negrette (juan11-87)]

I tryed to install several programs and most of them report an error with the qmail, whereas there were others that got installed with no problems...