The standard way to do it is to purge (not just remove) the package, but that probably won't work with the postinst failing. You might, depending on you level of comfort with such things edit the postinst to not call update-rc.d. I'm away from my computers now so it's difficult to advise on the best course of action.
-- package postfix 2.6.5-3 failed to install/upgrade: https://bugs.launchpad.net/bugs/620174 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to postfix in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs