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12 Jun 2005
In my roles as postmaster at CAUCE (the Coalition Against Unsolicited Commercial E-mail) and abuse.net, I get a lot of baffled and outraged mail from people who have discovered that someone is sending out spam, often pornographic spam, with their return address on the From: line. ``How can they do that? How do I make them stop?'' The short answers are ``easily'' and ``it's nearly impossible.''
One way that e-mail is very similar to paper mail is that you can scribble any return address you want on an envelope and mail it. With paper mail, just like e-mail, you can imagine ways to make it more difficult to scribble the name of someone you don't like, but the costs of doing so would be huge, and the benefits dubious. ...
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