I didn't get far from mySQL nightmare and I'm stuck again. Postfix and dovecot seemed to install just fine but the next step to configure smtp just says. bash: postconf: command not found
Did you change to root via su or did you directly login via root? If you did su, try su - otherwise you profile won't be loaded and pathes maybe set wrong. did you try a which postconf and if that does not help find / -name postconf
I ran in that *** problem some time, because after denying root login directly via ssh I added another user an "su"ed but stuff like service did not work.... so I came to that. To solve that you can make sth like alias su='su -' in /root/.bash_rc