Good evening, when I have installed ispconfig 3 make error at this command echo "update mysql.user set plugin = 'mysql_native_password' where user='root';" | mysql -u root but despite this is installed with success Ispconfi3 I create a Mail, but I not find the mailman admin, I need to charge CSV file 500mb size and setting mail campaign, is possible? Compliment in advance for this guide: https://www.howtoforge.com/perfect-server-debian-10-buster-apache-bind-dovecot-ispconfig-3-1/ before this I tried a lot of istruction for install mail server in debian, a lot of error during installing, and in conclusion nothing work. B.R. Marco