mail enable spam filter
mail enable spam filter thoughts for 12.31.1969
A line within an SMTP mail header that begins with the word "Received:" and describes one SMTP handoff between a pair of mail hosts, is the routing line. A header will contain one or more routing lines to describe the complete path taken by a message, from host to host, on its way from the sending machine to the recipient's mail host. While catchall addresses are a well-intentioned feature (ensuring that any mail directed to a domain can be received and directed to someone in charge, even if the address is misspelled), they cause problems when mixed with spam and other forms of mail abuse. Graylisting has spawned a couple of related techniques that also exploit the fact that spam mail senders don't follow the rules of smtp. You can sometimes track spammers to particular IP addresses that they use (for sending mail or for maintaining websites). A good spam filter should not only block your unwanted mails, but should also prioritize your wanted mail. Confirmed or "closed-loop" opt-in is one way to run an ethical mailing list since it virtually eliminates the possibility that a recipient could be sent mail when he did not ask for it. Blacklist: A list of e-mail addresses from which a user does not wish to receive mail; it may be used as part of a spam filter to hide or discard messages from addresses that appear on the list.
mail enable spam filter
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