raw mode = R = rc file

RBL /R-B-L/

Abbreviation: "Realtime Blackhole List". A service that allows people to blacklist sites for emitting spam, and makes the blacklist available in real time to electronic-mail transport programs that know how to use RBL so they can filter out mail from those sites. Drastic but effective. There is an RBL home page.

raw mode = R = rc file