About: http://webisa.webdatacommons.org/136782483

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	assumign this is squid, squid is a web proxy, not a mail proxy. you do not proxy pop3 / imap traffic, you would generally directly route to it.
http://www.w3.org/ns/prov#wasQuotedFrom	linuxquestions.org