About: http://webisa.webdatacommons.org/357222379

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Postfix can store user and domain information in LDAP directories, databases such as MySQL and PostgreSQL or flat files
http://www.w3.org/ns/prov#wasQuotedFrom	freesoftwaremagazine.com