About: http://webisa.webdatacommons.org/40021630

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	Some ISP's actively block port 25 to other servers other than their own.
http://www.w3.org/ns/prov#wasQuotedFrom	getsatisfaction.com