About: http://webisa.webdatacommons.org/343332350

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	One example of use is Nagios" alerting my address via smtp-relay on our exchange Dependant on how you configure the relay - it can use only internal addresses if you want but also commonly used for external aswell (to pass PTR checks).
http://www.w3.org/ns/prov#wasQuotedFrom	serverfault.com