Spam Filter for ISPs is designed to be a front-end for your incoming SMTP server. Spam Filter for ISPs is a spam filter gateway
Spam Filter for ISPs receives all emails addressed to your domain(s) and checks if the sender is listed in one or multiple DNS-based block lists; if not, the email is passed on to your main SMTP server.
The administrator can configure which block lists to use, set allowed domains, filter by keyword and maintain a blacklist as well.
Here are some key features of "Spam Filter for ISPs":
· SFDB - SpamFilter Distributed Blacklist
· MAPS DNS RBL Filters
· SURBL Filters
· SPF - Sender Policy Framework
· Bayesian Statistical Filtering
· Image Scanning / Filtering
· Blacklist IPs
· Blacklist Domains
· Blacklisted FROM Emails
· Blacklisted TO Emails
· Blacklist by Country
· Honeypot Capabilities
· Attachment Blocking
· Keywords Filter
· Reverse DNS validation
· MX Record validation
· Reject if "Mail From" = "Mail To"
· Reject if "From Domain" = "To Domain"
· Whitelist Domains / IPs
· Deliver specific emails without filtering
· Whitelist FROM Emails
· List of "Authorized TO Emails"
· SMTP User Authentication with SSL support
Requirements:
· For a server handling 20,000 emails/day, a 500MHz CPU and 512MB of RAM is the minimum recommended.
· For a server handling 200,000 emails/day, a dual-core 2GHz Xeon CPU and 4GBMB of RAM is the minimum recommended.
· For a server handling 2 million emails/day, two dual-core 3GHz Xeon CPUs and 4GBMB of RAM is the minimum recommended.
Limitations:
· 45 days trial
What's New in This Release: [ read full changelog ]
· {TODO -cNew Changed the file path (but not the server name) used by SpamFilter to download updated antiviru definition files}
· {TODO -cFix In SpamFilter Enterprise, fixed an issue with the MySQL triggers that prevented domains having customized settings from seeing changes made to the default black/white lists, if the domain was configured to have one of its black/whitelists inherit the settings from the "ALL DOMAINS"}
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