Yes, mdadm depends on mail-transport-agent, but that doesn't explain the behaviour. I get the same, but if I try to install another MTA (like exim) it becomes really weird:
========================= [EMAIL PROTECTED]:~# apt-get install mdadm exim4-daemon-light Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: citadel-server libical0 db4.6-util libcitadel1 citadel-common libsieve2-1 Use 'apt-get autoremove' to remove them. The following extra packages will be installed: bsd-mailx citadel-common citadel-server db4.6-util exim4-base exim4-config libcitadel1 libical0 libsieve2-1 mailx Suggested packages: postfix exim4 citadel-mta mail-transport-agent eximon4 exim4-doc-html exim4-doc-info libmail-spf-query-perl swaks The following NEW packages will be installed: bsd-mailx citadel-common citadel-server db4.6-util exim4-base exim4-config exim4-daemon-light libcitadel1 libical0 libsieve2-1 mailx mdadm 0 upgraded, 12 newly installed, 0 to remove and 0 not upgraded. Need to get 3115kB of archives. After this operation, 8823kB of additional disk space will be used. Do you want to continue [Y/n]? n ========================= Citadel is not installed and have never been: [EMAIL PROTECTED]:~# dpkg -l citadel-server No packages found matching citadel-server. -- Installing mdadm also installs citadel-common, etc. https://bugs.launchpad.net/bugs/280414 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs