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 23131.
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.

Features

  • Multiple Weighted DNSBLs
  • Multiple Weighted URIBLs
  • Greylisting
  • Weighted Regular Expression Filtering
  • Bayesian
  • Penalty Box
  • SenderBase
  • SSL/TLS
  • SPF/SRS
  • Attachment Blocking
  • ClamAV and FileScan
  • Blocking Reporting
  • LDAP support
  • Backscatter Detection
  • recipient replacement / GUI user access rights management
  • MIME charset conversion / DKIM check and signing
  • multi DB support for all hashes / level based open plugin support
  • transparent TCP proxy support
  • Plugins: archive, full attachment check and replacement, OCR
  • damping (steal spammers time)
  • AUTH to relay host / POP3 collector
  • configuration value and file synchronization
  • Block Reports design could be customized
  • Razor2 and DCC support using Plugin
  • SNMP support (monitoring, configuring, controll-API)
  • user group import (file or LDAP or command based)
  • automatic crash analyzer Hidden Markov Model
  • IPv6 socket support
  • word stemming (several languages) for Bayesian analyzer
  • Perl module autoupdate via PPM or CPAN
  • Hidden Markov Model spam detection engine
  • full unicode support
  • DMARC support
  • privat Whitelist (legacy, domain based, user based)
  • privat IP and Domain lists (legacy, domain based, user based)
  • CPU affinity settings
  • web file commander
  • graphical statistic output (SVG)
  • native SSL support for target hosts
  • client SSL-certificate validation
  • privat SMIME signing
  • corporate SMIME signing, using a single privat certificate
  • content based executable attachment blocking
  • content based compressed attachment blocking
  • BATV check and signing
  • Message-ID signing and check FBMTV
  • remote support
  • Authenticated Received Chain (ARC) processing and signing
  • RSS feeds for blocked emails using Plugin
  • zero day virus detection
  • VirusTotal API

Project Samples

Project Activity

See All Activity >

License

GNU General Public License version 2.0 (GPLv2)

Follow Anti-Spam SMTP Proxy Server

Anti-Spam SMTP Proxy Server Web Site

You Might Also Like
Cybersecurity Management Software for MSPs Icon
Cybersecurity Management Software for MSPs

Secure your clients from cyber threats.

Define and Deliver Comprehensive Cybersecurity Services. Security threats continue to grow, and your clients are most likely at risk. Small- to medium-sized businesses (SMBs) are targeted by 64% of all cyberattacks, and 62% of them admit lacking in-house expertise to deal with security issues. Now technology solution providers (TSPs) are a prime target. Enter ConnectWise Cybersecurity Management (formerly ConnectWise Fortify) — the advanced cybersecurity solution you need to deliver the managed detection and response protection your clients require. Whether you’re talking to prospects or clients, we provide you with the right insights and data to support your cybersecurity conversation. From client-facing reports to technical guidance, we reduce the noise by guiding you through what’s really needed to demonstrate the value of enhanced strategy.
Rate This Project
Login To Rate This Project

User Ratings

★★★★★
★★★★
★★★
★★
106
0
2
0
9
ease 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5
features 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
design 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5
support 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5

User Reviews

  • The bitcoin fraud is becoming more sophisticated, and more people are falling for it. Although it may irritate you, don't take it personally. Bitcoin scams must be reported, and if you have been conned, you must get all the assistance you require. A foundation has been established online to help customers get their money back from dishonest persons who have stolen it. Contact Mark Wizard Recovery Solution for dependable and effective help if you want to get your money back after becoming a victim of a bitcoin fraud. I fell prey to a bitcoin scam. I lost everything when I tried to invest in bitcoin, and I owe them a great deal. My appreciation for your assistance in helping me retrieve every last piece of my pilfered Bitcoin. For additional information about their offerings, get in touch with them via the methods listed below: Markwizard@solution4u.com https:c//www.markwizardrecoverysolution.com
  • ASSP is a free and open-source SMTP delegate server that is expected to filter spam and other unwanted messages. It is suitable with Windows, Linux, and other Unix-like working systems. One of the main benefits of ASSP is how well it removes spam and other unwanted emails. The item uses a blend of different systems, including blacklists, whitelists, and simulated intelligence computations, to recognize and obstruct unfortunate messages. Users are free to configure the software in any way they see fit because ASSP can be customized to meet the needs of specific organizations as well as individual users. Another benefit of ASSP is its simplicity of use. The software has an intuitive web interface that simplifies configuration and administration. Because it is compatible with a wide range of email clients and servers, ASSP can also be incorporated into a variety of email systems. Additionally, ASSP is extremely adaptable. Users have the ability to configure the software to use a variety of spam filters, modify the scoring system used to identify spam and create individualized rules to deal with specific types of emails. However, it is essential to keep in mind that ASSP may require some technical expertise and knowledge for proper setup and configuration. Additionally, the software may require initial tuning, which can take some time, in order to perform at its best. As a whole, ASSP is an effective and highly customizable SMTP proxy server for removing spam and other unwanted emails. It is an excellent choice for businesses and individuals looking to improve their email security and reduce the number of unwanted messages they receive because of its ease of use and compatibility with a large number of email clients and servers. However, customers should be willing to put in some effort and time to properly set up and design the product.
    1 user found this review helpful.
  • This is quite a decent anti-spam platform. It does however take some finesse in configuring it. The interface is clean and functional but can be a little confusing until you get used to using it. I have not experienced many crashes. And of coarse its open source and free and it works so theres three positives.
    1 user found this review helpful.
  • Excellent results if configured correctly.
    1 user found this review helpful.
  • Excellent product, you need time to handle it, but after some time you recognize that the gui is really functional and the product is designed to get you out of the spam trap. Dont give up because of the overhelming gui at the start.
    1 user found this review helpful.
Read more reviews >

Additional Project Details

Operating Systems

Linux, Server Operating Systems, BSD, Mac, Windows

Languages

Dutch, English

Intended Audience

Information Technology, System Administrators

User Interface

Web-based

Programming Language

Perl

Database Environment

Perl DBI/DBD, Oracle, MySQL, PostgreSQL (pgsql), IBM DB2, SQL-based, Microsoft SQL Server, Berkeley/Sleepycat/Gdbm (DBM), ODBC

Related Categories

Perl Email Spam Filter Software, Perl Anti-Spam Software, Perl Proxy Servers

Registered

2002-12-11