AVG avg 8.5 email server edition 用户手册

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AVG 8.5 Email Server Edition © 2009 Copyright AVG Technologies CZ, s.r.o. All rights reserved.
them if you have a valid reason to do so. Any changes to this configuration
should only be done by expert users!
8.5. RBL
The RBL item open an editing dialog called Realtime Blackhole Lists:
In this dialog you can switch on/off the Query RBL servers function.
The RBL (Realtime Blackhole List) server is a DNS server with an extensive
database of known spam senders. When this feature is switched on, all e-mail
messages will be verified against the RBL server database and marked as 
 if
identical to any of the database entries.
The RBL servers databases contain the latest up-to-the-minute spam fingerprints,
to provide the very best and most accurate 
especially useful for users who receive large amounts of spam that is not being
normally detected by the Anti-Spam engine.
The RBL servers list allows you to define specific RBL server locations. By default,
two RBL server addresses are specified. We recommend to keep the default settings