Even if an actual MTA is added to the d-i pkgsel/include debconf question in the installer preseed file, setting up software RAID in the installer will cause postfix to be installed, prompting the user for configuration information, and then postfix will silently be replaced with the MTA requested by the preseed file.
The whole point of preseeding is to automate stuff. If an MTA has already been selected and its configuration preseeded by the person who built the custom installer, then installing a different MTA, interrupting the person performing the install to ask them unexpected questions whose answers are going to be discarded, and then uninstalling the spurious MTA seems pretty sub-optimal. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to the bug report. https://bugs.launchpad.net/bugs/379882 Title: mdadm installs postfix To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mdadm/+bug/379882/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs