Open Source Anti-Spam Software

The Anti-Spam SMTP Proxy (ASSP) Server project aims to create an open source platform-independent SMTP Proxy server which implements auto-whitelists, self learning Hidden-Markov-Model and/or Bayesian, Greylisting, DNSBL, DNSWL, URIBL, SPF, SRS, Backscatter, Virus scanning, attachment blocking, Senderbase and multiple other filter methods. Click 'Files' to download the professional version 2.8.1 build 24261. A linux(ubuntu 20.04 LTS) and a freeBSD 12.2 based ready to run OVA of ASSP V2 are also available for download. NOTICE: V1 development has been stopped at the end of 2014 (1.10.1 build 16060). Possibly there will be done some bugfixing in future. Please upgrade to V2, which is and will be actively maintained.

CIDRAM (Classless Inter-Domain Routing Access Manager) is a PHP script designed to protect websites by blocking requests originating from IP addresses regarded as being sources of undesirable traffic, including (but not limited to) traffic from non-human access endpoints, cloud services, spambots, scrapers, etc. It does this by calculating the possible CIDRs of the IP addresses supplied from inbound requests and then attempting to match these possible CIDRs against its signature files (these signature files contain lists of CIDRs of IP addresses regarded as being sources of undesirable traffic); If matches are found, the requests are blocked.

FireScreen is an extension for the Firefox browser that allows you to block elements in a web page such as images, videos, iFrames and Flash containing unwanted publicity, adult content and other content you do not wish to see.

Perhaps the smallest system-wide Adblocker ever! A Clone of HostsManager from LVC! This program allows you to update your hosts file with a downloaded blacklist. The blacklisted traffic is being redirected to a blockpage (or a IP/localhost). Therefore tracking is being reduced to a minimum. You are also being protected from spam ads and more.

The Anti-Spam SMTP Proxy (ASSP) Server project aims to create an open source platform-independent SMTP Proxy server which implements auto-whitelists, self learning Bayesian, Greylisting, DNSBL, DNSWL, URIBL, SPF, SRS, Backscatter, Virus scanning, attachment blocking, Senderbase and multiple other filter methods. Click 'Browse all files' to download the professional version 2.4.3 build 14313. V1 development has been stopped in May 2014. Possibly there will be done some bugfixing until end of 2014. EOL of V1 is anounced for the 31 December 2014. Please upgrade to V2, which is and will be actively maintained.

This is a list of advertising domains that can be used with a proxy server to remove unwanted advert traffic from the network. This list is directly compatible with tinyproxy, but may also work with other proxy servers.

DNSBL6d is a new RBL server that will be lightweight with IPv6 capiblities, MYSQL intergration, and other features. Your suggestions are welcomed.

FilterBadRecruiters is a Google Apps Script that processes new messages looking for unwanted email from known third party recruiters. When a match is found, a reply is sent informing the sender that the message is being reported as spam and will not be read. The script then logs matches to a spreadsheet and updates a pie chart displaying what percentage of these type of messages were sent from each domain.

An InApp and Browser Adblocker based on hosts file blacklists

Home of the Antispam for all fields mod ! Development board > http://www.phpbbantispam.com

System base on Hosts file to cut communication of all ADS server ! système basé sur la redirection par le fichier Hosts de Linux

mod_dnsblacklist is a Lighttpd module that use DNSBL in order to block spam relay via web forms, preventing URL injection, block http DDoS attacks from bots and generally protecting your web service denying access to a known bad IP address.