Because this fix is delete ?On nethserver 6.8 is nethserver-mail-server/root/etc/e-smith/templates/etc/postfix/aliases/20root_alias
I solved it by editing the file / etc / aliases
......'#Decode trap to catch security attacksdecode: root
'#Person who should get root's mail addressroot: admin@....
I think this post shows the correct way to do this.
Thanks so much