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ppt - UCF Computer Science

Spring 2012. 2 ... Find free SSH clients on Internet .... Relay takes list of address and send msg to all; Proxy: spammer must send msg body to each recipient through proxy. ... More precisely: hotmail.com TXT v=spf1 a:mailers.hotmail.com - all.

http://www.cs.ucf.edu/~czou/CIS3360-12/spam.ppt - to download, right-click.