Spam - General Information

Articles Index

What You Need to Know About Challenge - Response Spam Filters
If getting rid of spam is the challenge, challenge/response systems are an elegant and efficient response. Find out how challenge/response spam filters work.

What Email Headers Can Tell You About the Origin of Spam
Want to know where all the junk mail is really coming from? Find out how the source of spam can be determined using an email's header lines.

Email is Dead
Email users, ISPs and newsletter publishers have to deal with spam, being accused of spamming, being blocked and censored, and in general with a useless medium. Why would anybody want to deal with all that?

How Tempfailing and Graylisting Spam Work
Graylisting means only mail from senders who are persistent enough gets through. The assumption is that spammers are too lazy to keep trying.