Whitelist

Tiny 3-megabyte email program with the world's best spam filter -- SpamBayes -- bulit right in. Never before has filtering spam been so simple or effective. Spam filtering is typically either overly-complicated or overly-simplified. 3D Mailbox Light uses SpamBayes, arguably the best spam filter... Platforms: Windows

Surblhost project is a small program to see if hostnames are listed in the Spam URI Realtime Blocklists (SURBL). Hosts that are blacklisted means that global spam email have been reported to contain links to these hosts. Many popular spam email filters use these lists to identify spam email,... Platforms: *nix

Sendmail Confirmation System is an Sendmail milter plugin that is designed to reduce the amount of junk email received. SMC uses a dynamic local and DNS based remote "whitelists" (for known/trusted senders), DNS based "blacklists" (for undesired senders), and an original "autoauthentication"... Platforms: *nix

Spoink is an output-plugin for snort that works by blocking access to attackers using OpenBSDs pf api. All you need is an OpenBSD machine (or pf compatible), and snort (last version works well). Spoink uses a pf table and a blocking rule to stop "attackers" accessing our system. To protect... Platforms: *nix

Evochallenge is a simple Perl-based challenge/response mail filter for Evolution on Linux. How it Works: Challenge/response e-mail filters only pass e-mail through if the sender is on a "whitelist". E-mail from anyone not on the whitelist goes to a holding area. The sender is then challenged... Platforms: *nix

sshutout is a daemon that periodically monitors log files, looking for multiple failed login attempts via the Secure Shell daemon. sshutout is meant to mitigate what are commonly known as "dictionary attacks," i.e. scripted brute force attacks that use lists of user IDs and passwords to effect... Platforms: *nix

LWPx::ParanoidAgent is a Perl subclass of LWP::UserAgent that protects you from harm. SYNOPSIS require LWPx::ParanoidAgent; my $ua = LWPx::ParanoidAgent->new; # this is 10 seconds overall, from start to finish. not just between # socket reads. and it includes all redirects. so attackers... Platforms: *nix

Ingo, the "Email Filter Rules Manager", started as a frontend for the Sieve filter language, and is now a generic and complete filter rule frontend that currently is able to create Sieve, procmail, and IMAP filter rules. The IMAP filter driver translates the filter rules on demand to IMAP... Platforms: *nix

Sendmail::AccessDB is an interface to the Sendmail access.db list. SYNOPSIS use Sendmail::AccessDB qw(spam_friend whitelisted); $friend_or_hater = spam_friend(user@example.com); $whitelisted = whitelisted(sender@example.com); This module is designed so that users of the Sendmail::Milter... Platforms: *nix

smf-spamd is a Sendmail filter for SpamAssassin. Sendmail filter for SpamAssassin aims to be lightweight, reliable, and simple rather than have a myriad of options. It only scans the messages less than defined size, has a hosts/networks whitelist, performs subject tagging if SPAM is detected,... Platforms: *nix

NoScript offers extra protection for your Firefox: NoScript allows JavaScript, Java (and other plugins) only for trusted domains of your choice (e.g. your home-banking web site). This whitelist based pre-emptive blocking approach prevents exploitation of security vulnerabilities (known and even... Platforms: *nix

Whitetrash is a user-friendly and sysadmin-friendly proxy that makes it significantly harder for malware to use HTTP and SSL for: - initial compromise; - data exfiltration; and - command and control.. An open-source implementation of a dynamic web whitelisting proxy. Platforms: *nix

mod_antispam is an apache module which can control referer spam. By using this module, you can control referer spam accesses. As you know, sometimes you can see referer spam access in your log files. their purpose is to lead you to spam website by recording their website address in your log... Platforms: *nix

phPOP3clean is a PHP-based POP3 email scanner.It's designed to be run as a cron job every minute or so, and to catch & delete several types of unwanted emails:a) malformed emails - incomplete or malformed headers, which cause    some POP3 servers to drop connection when the message is... Platforms: Windows, Mac, *nix, PHP, BSD Solaris

grepcidr can filter IP addresses matching IPv4 CIDR/network specification. grepcidr can be used to filter a list of IP addresses against one or more Classless Inter-Domain Routing (CIDR) specifications, or arbitrary networks specified by an address range. As with grep, there are options to... Platforms: *nix

ASK is a spam killer. This program (Active Spam Killer, or ASK for short) takes an "Active" approach in solving the problem: Everytime an email is received, a message is sent back to the sender asking for confirmation. If that sender does not confirm the message, it remains queued for delivery.... Platforms: *nix

SafeHTML is an anti-XSS HTML parser, written in PHP. This parser strips down all potentially dangerous content within HTML: - opening tag without its closing tag - closing tag without its opening tag - any of these tags: “base”, “basefont”, “head”,... Platforms: *nix

anti_offline_browser.php is a script to protect your site against offline browsers that produce too much traffic. It uses basic user-agent detection and hits-per-second-rate to detect offline browsers. Seach engine bots are detected using an IP-based whitelist. At first, you should edit the... Platforms: *nix

SMC non-context E-mail filter - is an software application designed to significantly reduce the amount of SPAM/UCE (junk-mail) you receive. SMC uses a dynamic local and DNS based remote "whitelists" (for known/trusted senders), DNS based "blacklists" (for undesired senders), and an original... Platforms: *nix

Distributed Checksum Clearinghouse, in short DCC, is a system of clients and servers that collect and count checksums related to mail messages. The counts can be used by SMTP servers and mail user agents to detect and reject bulk mail. DCC servers can exchange common checksums. The checksums... Platforms: *nix