Search Results for "gnu linux"
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Showing 87 open source projects for "gnu linux"
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Anti-Spam SMTP Proxy Server
Anti-Spam SMTP Proxy Server implements multiple spam filters
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... -
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The Courier mail transfer agent (MTA) is an integrated mail/groupware server based on open commodity protocols such as ESMTP, IMAP, POP3, LDAP, SSL, and HTTP. Courier provides ESMTP, IMAP, POP3, Webmail, calendaring, and mailing list services.
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bogofilter -- Fast Bayesian Spam Filter
Fast Bayesian spam filter along lines suggested by Paul Graham
The bogofilter package implements a fast Bayesian spam filter as suggested by Paul Graham in "A Plan For Spam" <http://www.paulgraham.com/spam.html>. It is written in C. Supported platforms: Linux, FreeBSD, Solaris, OS X, HP-UX, AIX, RISC-OS, ... -
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MailCleaner
Anti Spam SMTP Gateway
...Using Bayes, RBLs, Spamassassin, MailScanner, ClamAV. Based on Debian. Enterprise ready. MailCleaner is an anti spam gateway installed between your mail infrastructure and the Internet. It includes a complete GNU/Linux OS and a graphical web interface for user and administrative access. It comes in the form of virtual machine templates.. - fully compatible with any SMTP mail server (Exchange, Zimbra, O365,...) -
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SSL Signature Check (SSLSigcheck) is an email filter designed to be run from within procmail. It will examine the signature and certificate of a signed email, and add header information that procmail recipes can use to filter the message.
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BraCiNeVe
A Scalable Spam Filtering Architecture
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POPFile is an email classification tool with a Naive Bayes classifier, POP3, SMTP, NNTP proxies and IMAP filter and a web interface. It runs on most platforms and with most email clients.
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RadicalSpam
Open Source Anti-Spam and Anti-Virus Gateway
RadicalSpam is a free and open source package distributed under GPL v2, including products such as Postfix, SpamAssassin Amavisd-new, Clamav, Razor, DCC, Postgrey, Bind; providing a secure SMTP relay, ready to use with linux and docker environement. More information : http://www.radical-spam.org -
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RadicalSpam Virtual Appliance
Virtual Appliance of RadicalSpam
RadicalSpam Virtual Appliance takes full solution of RadicalSpam Community Edition , pre-installed in a OVF virtual machine ( Open Virtual Format ) compatible with the best virtualization platforms on the market , including VMware ESX Server. More information : http://www.radical-spam.org -
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Postfix greylisting policy service with auto-white-listing written in Perl with SQL database as storage backend. Greylisting stops 50 to 90 % junk mails (spam and virus) before they reach your Postfix server (saves BW, user time and CPU time).
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Qmail-Scanner: Content/Anti-virus Scanne
AV/content filter for Qmail
Qmail-Scanner, is a Email content scanner that enables a Qmail Email server to scan all Email it receives for certain characteristics (normally viruses), and react accordingly. -
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DKIMproxy is an SMTP-proxy that implements the DKIM and DomainKeys standards, to sign and verify email messages using digital signatures and DNS records. It can be used to add DKIM support to nearly any existing SMTP mail server.
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Another Generation Webmin module for administration of the Spam and Virus Filter Daemon MailScanner configuration file.
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An open, all-in-one SMTP gateway, scanning your email traffic in order to prevent spam and viruses, using several anti-spam technologies. Based on Ubuntu Server.
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The OpenPEC project is a collaborative effort to develop an Open Source Certified E-Mail System (in italian: Posta Elettronica Certificata or PEC) as requided by the Italian law. See the DigitPA (CNIPA) site for details (http://www.cnipa.gov.it)
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Parse PPDragon rejection logs to find false-positive unkown hosts (most likely mis-configured email servers) and whitelist them. it also builds blacklist table with confirmed spam sources, based on very simple tests.
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see: https://spamcannibal.svn.sourceforge.net/svnroot/spamcannibal spamcannibal for svn repository or visit http://search.cpan.org/
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This is a filter for Postfix written in PERL wich adds one or more file attachment to mails. I have used it succesfully with altermime to add pictures to outgoing mails, allowing to incorporate html disclaimers and signatures with corporative logos.
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Policy-daemon for the postfix MTA in perl. Scores RBLs, RHSBLs, HELO, Client IP and MAIL FROM argument and sums up a score on which you can reject the mail before DATA will be received. Results are cached. I.e: a weighted SMTP filter before DATA (queue).
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Blacklist combined with honeypot mailing addresses (spamtrap) can be an effective antispam technique. Stixs is a policy delegation module for Postfix using bld (blacklist daemon) to blacklist IPs trying to deliver mail to web-published fake addresses.
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whatsnewfm is a filter for the daily freshmeat newsletter. It shows only news items that you have not seen before. You can also set up a list of "interesting" applications where you want to be informed of every update.
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dkim-connector is a daemon that facilitates the configuration of dkim-milter (especially for multi domain hosting; with postfix and sendmail) and is accessible via webservices (for a simplified adaption of specific admin tools) and a console client
