Espresso is a powerful permissions-based email client designed to completely eliminate spam as you define it from your Inbox. Espresso's powerful email filter is based on a sophisticated challenge-response system. All messages from approved and trusted senders are immediately accepted. Espresso doesn't rely on deep header analysis, anti-spoofing techniques, heuristics, or Bayesian filters to eliminate spam. It simply looks for the messages you want to receive using sensible, yet powerful rules.
Tools and Utilities
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