Email Firewalls

Managing incoming messages to prevent spam, viruses, and phishing attacks can be a lot of work. That’s why large corporations usually install “email firewalls”, or hire 3rd party vendors (like “Barracuda Firewall” or “Postini”) to handle their incoming email.

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Anti-Spam Filters in Email Clients and Web Mail Services

Along with the ISP spam filtering systems, people can use anti-spam filters in their email clients to protect against unsolicited emails. In the table below we summarized the information about anti-spam filters in most popular email applications and web-based email services.

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