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Postbox Phishing Protection, and why Postbox makes network connections to Google

Postbox helps protect users from viruses, spyware, and trojan horses by checking URLs received in messages against a local database of suspected phishing or malware sites. The database is automatically updated every 30 minutes from Google's Safe Browsing Service, and if a potentially malicious URL is identified, a warning message will be prominently displayed.

To turn this feature on or off, go to Preferences, click the Privacy tab, then enable or disable "Block reported e-mail scams."