The New Hacker's Dictionary
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 (and controversial) but effective. There is an RBL home page.
The numerical value of rbl in Chaldean Numerology is: 7
The numerical value of rbl in Pythagorean Numerology is: 5
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