noun
spam filter
Computing term for software or a feature that detects and blocks spam email or messages.
新しいスパムフィルターのおかげで迷惑メールが減った。
Thanks to the new spam filter, junk mail has decreased.
Variant with interpunct; less common in running text but seen in technical contexts.
More explicit Japanese term for a spam filter, literally 'nuisance mail filter'; スパムフィルター is the common loanword.
Loanword from English 'spam filter', adopted into Japanese as a computing term.