Mageia 3 has all the main services and server packages you will need to run your server.
Aside from the cross-section included here, you will find many others in the repositories: you can use rpmdrake to search for packages, or check the Mageia App DB.
For centralised administration, we include puppet 2.7.21; we use it widely in our own infrastructure.
The entire High Availability stack has been updated, and now includes drbd 8.4.2, Corosync 2.3.0 and Pacemaker 1.1.8.
Databases included are PostgreSQL 8.4.17; MariaDB 5.5.28, which replaces MySQL; BDB.
And there are NoSQL servers too: CouchDB 1.2.1, Redis 2.6.5, MongoDB 2.2.2.
Web servers include Apache 2.4.4, Cherokee 1.2.101 and lighttpd 1.4.32.
For file and directory sharing and network printing on heterogeneous networks, we have Samba 3.6.15, OpenLDAP 2.4.33 and Cups 1.5.4.
Mail servers included with Mageia 3 are Postfix 2.9.6, Cyrus-imapd 2.4.17 and Dovecot 2.1.15.
For more information about these and other packages, check the Mageia 3 Release notes.
You can take a look at the Mageia Application Database to get a more complete list of Mageia packages.