Hello and thank you to everyone who reported and commented on this issue. The package maintainers have chosen to recommend an MTA for a very good reason. By default, mdadm sends problems to the local user, 'root'. If you haven't setup an MTA, root is just going to be ignored and problems will be missed. You are quite welcome to remove postfix, or to ask synaptic/aptitude/apt-get not to install "Recommends". When mdadm is installed from the CD during install or upgrade, it does not pull in any MTA, only when it is manually added later. I know that this is somewhat confusing, but postfix and other MTA's can be configured very easily during installation not to listen on any ports or expose your system to any danger, so its not a security issue either.
I am going to flag this one as Opinion. It seems there are some strong feelings here and its worth hearing more before closing the bug. However, I think the current situation is fine and should not be changed. ** Changed in: mdadm (Ubuntu) Importance: Undecided => Medium ** Changed in: mdadm (Ubuntu) Status: Confirmed => Opinion -- You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. https://bugs.launchpad.net/bugs/379882 Title: mdadm installs postfix -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs