Blacklists
Blacklists are used to prevent spam (junk email messages) from entering an email system. At Rice, several blacklists are utilized to reduce spam traffic in the university's email system. All Rice employees and students benefit from this blacklist service, but anyone who is concerned about missing important messages can opt out. Just remember that spam and phishing (email identity fraud and theft) messages make up 80-90% of all messages addressed to rice.edu email accounts.
