how to uninstall iredmail
sudo apt-get remove --purge postfix* nginx* sa-compile* dovecot* fail2ban* ldap* mysql* sogo* clamav* amavis* nginx* php* mlmmj*
sudo apt-get autoremove --purge
sudo rm -rf /var/run/mysql /var/run/amavis /var/run/mlmmjadmin /var/run/iredadmin /var/run/fail2ban /var/run/netdata
sudo rm -rf /etc/mysql /etc/clamav /etc/dovecot /etc/fail2ban /etc/netdata /etc/spamassassin
sudo userdel -f iredadmin
sudo userdel -f iredapd
sudo userdel -f clamav
sudo userdel -f mlmmj
sudo userdel -f netdata
sudo userdel -f vmail
sudo userdel -f debian-spamd
sudo userdel -f mail