实时黑名单（RBLs）是第三个部分，它维护一个已知垃圾邮件制造者的域名和IP地址列表。
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用鉴别垃圾邮件(签名)和即时黑名单(RBLs)的方法来抵御垃圾邮件注定失败。垃圾邮件发送者能够轻易的绕过即时黑名单，最好的电子签名技术也无法达到百分之百的正确率。
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The Royal British Legion in Scotland (RBLS) says it is gearing up for an increase in interest as the centenary of WWI approaches.
BBC: Charity raises awareness of war graves in Scotland
General Sir Alistair Irwin, RBLS president, said it was important for schoolchildren, who learn about the world wars as part of the curriculum, should visit the site to see the graves.
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