The file alternatives.conf I gave to u was my sample. I don't have the default alternatives.conf but if you would like see the default articles of possibilities.conf, clear away present solutions.conf, then run a normal setup.sh and stop the installation CTRL+C when the setup is trying to operate custombuild, https://office365smtpsetup56665.evawiki.com/8756474/the_definitive_guide_to_ispconfig_support