This tutorial describes how to set up and configure virtual mail hosting with an LDAP backend. Software we will use in this howto: Postfix (MTA), Dovecot (IMAP / POP3), Gnarwl (vacation), OpenLDAP (LDAP) and vMailpanel as the management interface. Optional are Proftpd FTP, Roundcube (webmail) and MariaDB (SQL backend for Roundcube).