Sender Callouts Exchange 2003

• The from-address (for technical reasons) does not need to be that of the sender of the mail! In nearly all spam this address is absent, bogus, or stolen from an innocent party.
• When your computer is infected with a spam bot, the sender (you) unknowingly sends the spam.
• Headers identify the sender and recipient of a message, the route the message took from one site to another and so on.
• Challenge Response - a method of blocking spam which requires the sender of the email to manually respond to a verification message sent to them.
• Spamarrest works by questioning unknown senders with its innovative challenge/response function.
• The unknown sender will receive the challenge request, where they need to respond.
• So, if an unknown sender fails to respond their email lands up in your junk email folder.
• Senders only have to be authenticated once by spamarrest, before being added to the safe list.
• The header shows the address of the message sender, the address of the message recipient, the message subject and other information.
• Some pyramid schemes come with window dressing to make them look legitimate, there may be text in the letter assuring you that the sender's lawyer has verified that it's legal.

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