A content scanner for electronic documents such as email scans objects which are the target of hyperlinks within the document. If they are determined to be acceptable, the hyperlinks are replaced by ones pointing to copies of the objects stored on a trusted server. ...http://www.google.fr/patents/US20050071748?utm_source=gb-gplus-shareBrevet US20050071748 - Method of, and system for, replacing external links in electronic documents
Method of, and system for, replacing external links in electronic documents