Mathieu what version did you use, and what did you preseed? I used plain 9.10 alternate to install on raid and it did not install postfix with mdadm, but synaptic would pull it in if it's installed later.
Mathieu what version did you use, and what did you preseed? I used plain 9.10 alternate to install on raid and it did not install postfix with mdadm, but synaptic would pull it in if it's installed later.