School officials determined the virus was similar to Onel de Guzman's thesis, called E:mail Password Sender Trojan, which was designed to obtain Windows passwords, and retrieve Internet accounts from victims' computers.
Two technologies are used in conjunction: DKIM (Domain Keys Identified Mail) and SPF (Sender Permitted From).
What you need is software that would reject mail from strangers unless the sender transmits 33 cents into your AOL account.
The protocols for that kind of authentication, known as DomainKeys Identified Mail (DKIM) and Sender Policy Framework (SPF) are hardly new.
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The e-mail app in general looks great: Facebook integration comes into play here, too, so when you load an e-mail it's accompanied with the sender's Facebook portrait as well.
Some forge their e-mail header--the data above and below an e-mail that contains information about the recipient and sender.
The e-mail was provided to CNN on the condition that the sender's name be redacted.
Messages that appear in the priority box will initially be determined by an algorithm based on such as factors as the identity of the sender, key phrases in the message and whether the mail was sent to an individual or a large group.
Your mail-handling software would scan each message to see if either the sender's name could be found in your personal directory or a magic word could be found in the subject field.
Once a sender is blacklisted by this cabal, the majority of its e-mail is bounced back, marked as undeliverable.
Studios, networks and publicists say thousands of letters have been returned to sender or just set aside, and some celebrities have signed up with services that open fan mail for them or stopped opening mail altogether.
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