Definition - What does Spam Filter mean?
A spam filter is an email service feature designed to block spam from a user’s inbox. Because a large amount of global email messages are spam, effective spam filters are critical to maintaining clean and spam-free inboxes.
Techopedia explains Spam Filter
There is no such thing as a perfect spam filter. Even the most popular email services are susceptible to two major weaknesses:
- Even the best spam filters are unable to block 100 percent of spam messages.
- Legitimate emails are often routed to junk email, or spam, folders, as spam filters often misclassify legitimate emails.
Thus, even established spam filters require some manual filtering, albeit to a lesser degree.
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