DeleteSimilar ਮੁੜ ਤੋਂ ਚਾਲੂ ਕਰਨ ਦੀ ਲੋੜ ਹੈ

Auto-delete similar newer incoming RSS messages.

No GUI (Hands free). To make it work you just rename the RSS folder to start with a minus.
i.e. Google News to -Google News

Uses Trash. Keeps oldest message to preserve Read status.