About: http://webisa.webdatacommons.org/24639890

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	You cannot prevent an adversary who can sniff the traffic between the SMTP servers from reading the envelope, so they would know things such as the to, from, and subject line.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com