package courier-filter-perl (not installed) failed to install/upgrade: subprocess installed post-removal script returned error exit status 1

Binary package hint: courier-filter-perl

Ubuntu 9.1 64bit
for last few days every update courier-filter-perl and courier-mta was giving me error and I am un install it. In process of removing of packages trough Synaptic crash happened .

Regards

ProblemType: Package
AptOrdering:
 courier-filter-perl: Purge
 courier-mta: Remove
Architecture: amd64
Date: Wed Nov 11 10:47:19 2009
DistroRelease: Ubuntu 9.10
ErrorMessage: subprocess installed post-removal script returned error exit status 1
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release Candidate amd64 (20091020.3)
NonfreeKernelModules: nvidia
Package: courier-filter-perl (not installed)
ProcVersionSignature: Ubuntu 2.6.31-15.50-generic
SourcePackage: courier-filter-perl
Title: package courier-filter-perl (not installed) failed to install/upgrade: subprocess installed post-removal script returned error exit status 1
Uname: Linux 2.6.31-15-generic x86_64