I am building a Centos7 mailserver to replace my Centos6 server. This means moving to Apache 2.4 and MariaDB, so I am finding a number of changes from my notes. I now have MariaDB running with the databases created and Apache running. I try accessing postfixadmin and get: DEBUG INFORMATION: MySQL 4.1 functions not available! (php5-mysqli installed?) database_type = 'mysqli' in config.inc.php, are you using a different database? Please check the documentation and website for more information. ================= mysqli is what the config.inc.php says to use for // mysqli = MySQL 4.1+ or MariaDB I installed httpd mod_ssl php mariadb-server Thanks for any help on this.