Exchange 2003 Anti Spam

• The sender policy framework (SPF) is a set of procedures that allows mail providers to exchange information in real time on who they permit to send mail and from which hosts.
• orgSpam recipients who use exchange-based mail services are at a relative disadvantage in tracing spam messages, since exchange clients often make it difficult to see smtp headers, and will often munge the format of messages and of complex mime-based e-mail bodies.
• Most mail programs like ms (microsoft) exchange and squirrel mail have their own spam filters built in, but you might want to add your own spam filter because if you have high mail traffic your mail program will have to work double in sending, receiving, and filtering spam.
• The chain letter often uses the exchange of trivial goods for money (such as "e-books" on how to spam), although this doesn't prevent it from being considered mail fraud if it involves postal mail at any point (e.
• Microsoft's trade name for its proprietary e-mail management system is EXCHANGE, popular among large corporations or institutions that use Microsoft softwares.
• Exchange is the system for your company's e-mail and not the program you use to pick up your mail.
• Exchange is supported primarily by Microsoft's Outlook mail client, and by an increasing number of non-Microsoft clients as well.
• Exchange generally does not use open standard protocols (SMTP, POP, etc.
• It can also find the mail exchangers used to send mail to addreses within a domain.
• A pink contract is a secret agreement between an ISP and a spamming customer in which the ISP agrees to waive or weaken its published anti-spam policies in exchange for significantly higher fees.
• A mail exchanger (MX) is the technical name for a mail host, the mail transfer agent officially designated within DNS to receive mail on behalf of users of a given domain.
• The mail exchanger should reject the transfer of a message outright if it can't be delivered, but some MXs send this job to the MDA.
• Graylisting is a technique used by a mail exchanger host to defend against spam deliveries by temporarily rejecting all mail from unrecognized sources.

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