Fending off spam before it reaches your filter
Sometimes the best way to keep spam out of your mailbox is to keep the spammers from getting your address.
If you must publish your email address online, spammers will quickly flood your inbox with junk. Filtering the incoming mess requires CPU power, and you risk losing legitimate messages. Most of the work on spam protection has concentrated on recognizing and filtering spam messages as they arrive. Another approach, however, is to convince spammers to leave your address alone in the first place.
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