Altospam
Altospam is an open source spam filtering software designed to identify and block email spam. It uses rules, Bayesian filtering, blacklists, and whitelists to accurately detect spam.
Altospam: Open Source Spam Filtering Software
Open source spam filtering software using rules, Bayesian filtering, blacklists, and whitelists to accurately detect and block email spam.
What is Altospam?
Altospam is an open source email spam filter software developed as an alternative to commercial solutions like SpamAssassin or SpamPal. It aims to provide accurate spam detection combined with ease of use and flexibility.
The software utilizes a variety of anti-spam techniques including DNS blocklists, Bayesian filtering, heuristic rules, reverse DNS lookups, greylisting and more. These work together to analyze email content and metadata to determine if a message is spam.
A major benefit of Altospam is customizability - users can tweak settings like Bayesian statistical analysis, add custom rules, whitelist senders, and more to improve accuracy over time. Integration with other mail services is simple via the Milter protocol.
As an open source solution, Altospam provides a no-cost alternative for personal use, small businesses, schools and nonprofit organizations. It can run on Linux, BSD, Solaris and macOS platforms. The codebase is actively maintained by a community of developers and users.
Overall, Altospam presents a compelling spam filtering option. Non-technical users can get started quickly using default settings while more advanced ones can deep-dive to optimize performance. The availability of community support also makes it easier to operate for most use cases.
Altospam Features
Features
- Rule-based spam detection
- Bayesian filtering
- Blacklists and whitelists
- Customizable spam rules
- Reporting and logging
- Integration with popular email servers
Pricing
- Open Source
Pros
Open-source and free to use
Highly customizable to fit specific needs
Accurate spam detection with low false positives
Actively maintained and supported by the community
Cons
Requires technical knowledge to set up and configure
May not be as user-friendly as commercial solutions
Limited support compared to commercial products
Official Links
Reviews & Ratings
Login to ReviewThe Best Altospam Alternatives
View all Altospam alternatives with detailed comparison →
Top Security & Privacy and Spam Filtering and other similar apps like Altospam
Malwarebytes Anti-Malware
Malwarebytes Anti-Malware is a leading anti-malware application that provides comprehensive protection against a wide range of threats such as malware, viruses, spyware, ransomeware, and more. It uses advanced technologies such as signature-less behavioral monitoring and anomaly detection to identify and block cyberattacks in real-time.A key benefit of Malwarebytes is that...
Mailwasher
Mailwasher is an easy-to-use email cleaning software designed to filter out unwanted spam emails before they reach your inbox. It sits between your email provider and your computer and analyzes all incoming email for signs of spam using advanced analytics techniques.Key features of Mailwasher include:Powerful spam detection - Mailwasher analyzes...
Kaspersky AntiVirus
Kaspersky Anti-Virus is one of the top antivirus software on the market, offered by Kaspersky Lab based in Moscow, Russia. It has consistently achieved high scores in independent lab tests for its malware detection rates and low false positives.Key features of Kaspersky Anti-Virus include:Real-time protection against viruses, malware, spyware, ransomware...
Avira Antivirus
Avira Free Antivirus is one of the most popular free antivirus programs available. It is made by the German cybersecurity company Avira. Key features include:Real-time scanning that detects and blocks malware before it can infect your computerScheduled scans that you can customize to run at specific times or intervalsSmall system...
VT4Browsers
VT4Browsers is a free, open-source web browser that focuses on user privacy and security. It is based on the Chromium web browser but has modified settings and additional features to enhance privacy.Some key features of VT4Browsers include:Blocks ads and trackers by default to prevent user trackingDoes not collect or share...
Malwarebytes Anti-Ransomware
Malwarebytes Anti-Ransomware is a free software program developed by Malwarebytes to protect against ransomware threats. Ransomware is a type of malware that encrypts personal files on a device and demands payment for decryption.Malwarebytes Anti-Ransomware provides real-time monitoring for suspicious activity that could indicate ransomware. It watches for behaviors like unauthorized...
MailScanner
MailScanner is a free, open source email security system for Linux/UNIX-based mail servers. It is designed to scan incoming and outgoing emails to detect and block spam, viruses, malware, phishing attacks, and other email-borne threats.Some key features of MailScanner include:Real-time scanning of SMTP and POP3 traffic using a variety of...
Mailinblack
Mailinblack is an advanced email security and protection software designed specifically to block sophisticated email attacks like spam, phishing, malware, ransomware, while allowing legitimate emails to reach your inbox. It sits between your email provider and your devices, acting as an intelligent email filter powered by artificial intelligence.Unlike basic email...
Cylance Smart Antivirus
Cylance Smart Antivirus is an artificial intelligence-powered antivirus solution that leverages machine learning algorithms instead of traditional signature-based detection to identify and block malware and cyber threats. It analyzes files, memory, script, and network activity at the kernel level to detect malicious code and behaviors without needing updates or signature...
AppCheck Anti-Ransomware
AppCheck Anti-Ransomware is a behavior-based anti-ransomware program designed to detect and block malicious encryption attempts on personal files. It uses advanced behavioral analysis to monitor application activity and build a whitelist of trusted programs.When AppCheck detects an unknown application attempting to encrypt or modify documents, pictures, videos or other personal...
BitNinja Server Security
BitNinja Server Security is a powerful security solution designed specifically to protect web servers from cyber threats. It works by analyzing all traffic in real-time to detect and block malicious requests before they can compromise the server.Some key features of BitNinja include:Real-time traffic analysis - Uses machine learning to inspect...
Emsisoft Anti-Malware
Emsisoft Anti-Malware is a security program developed by Emsisoft which focuses on detecting and eliminating malware from Windows PCs and servers. Some key features of Emsisoft Anti-Malware include:Uses a dual-engine system with both signature-based and behavior-based threat detection for comprehensive protection.Employs advanced heuristics and machine learning technology to identify and...
Spamihilator
Spamihilator is a powerful email spam filter software for Windows designed to integrate seamlessly with popular email clients such as Outlook, Windows Live Mail, and Thunderbird. It utilizes advanced spam fighting techniques such as Bayesian filtering, blacklists, whitelists, heuristics, and more to accurately identify and block spam emails.Once installed, Spamihilator...
Symantec Messaging Gateway
Symantec Messaging Gateway is a comprehensive email and web security solution designed to protect organizations from advanced threats like spam, malware, phishing, and data loss. It works by scanning all incoming and outgoing emails, attachments, and web traffic using a multilayered set of advanced threat detection engines and machine learning...
CyberSight RansomStopper
CyberSight RansomStopper is an advanced anti-ransomware program designed specifically to detect and block ransomware attacks. It uses patent-pending behavior analysis technology to monitor system activity for suspicious behaviors indicative of ransomware encryption processes.Unlike traditional antivirus software, RansomStopper does not rely on known signatures. Instead, it looks at the behavior of...
Oikik Antispam
Oikik Antispam is an advanced spam filtering solution that uses artificial intelligence and machine learning to identify and block unwanted emails in real-time. It was designed from the ground up to adapt and respond to the latest spam tactics and protect users from phishing attempts, malware attacks, and other email...
Kaspersky Anti-Ransomware Tool for Business
Kaspersky Anti-Ransomware Tool for Business is a free standalone cybersecurity application developed by Kaspersky Labs to help protect Windows-based business computers from ransomware attacks. It provides advanced monitoring capabilities to detect suspicious activity indicating potential ransomware threats, and includes data protection features to prevent encryption or deletion of critical files.Key...
HitmanPro.Alert
HitmanPro.Alert is an anti-malware program developed by SurfRight for detecting and blocking zero-day threats in real-time. It works by monitoring system behavior to identify suspicious activity indicative of malware infection. Some key features of HitmanPro.Alert:Uses advanced behavioral analysis and machine learning to detect zero-day malware that traditional antivirus software may...
RansomBuster
RansomBuster is a free anti-ransomware application developed by Cybereason that helps protect Windows computers from ransomware attacks. It works by monitoring system behavior to identify suspicious processes that resemble ransomware activity.Some of the key features of RansomBuster include:Behavior Monitoring - Monitors system activity for signs of ransomware behavior like file...
Bogofilter
Bogofilter is a free and open source spam filter that uses Bayesian filtering techniques to identify spam emails. It analyzes messages based on words and patterns to determine if they are spam or not.Some key features of Bogofilter include:High accuracy spam detection using statistical analysisAbility to train the filter using...
SpamPhobia
SpamPhobia is an anti-spam solution designed specifically for Microsoft email clients like Outlook, Outlook Express and Windows Mail. It works by analyzing incoming emails using advanced detection algorithms to identify and block spam messages, phishing attempts, and emails carrying viruses or other malware.Key features of SpamPhobia include:Real-time scanning of incoming...
Postini
Postini is an email and web security service owned by Google since 2007. It provides the following main services:Spam and virus filtering - Postini uses sophisticated techniques like machine learning and heuristics to identify and filter out spam and viruses from incoming emails.Email encryption - Postini can automatically encrypt emails...
MailRoute
MailRoute is an email management application designed to help individuals and teams better organize, prioritize, collaborate on, and manage email across multiple accounts. Some key features of MailRoute include:Unified inbox - See all your emails from different accounts (Gmail, Outlook, etc.) in one unified inbox for simplified management.Email tracking -...
Bitdefender Anti-Ransomware
Bitdefender Anti-Ransomware is a free standalone anti-ransomware tool for Windows from cybersecurity company Bitdefender. It provides real-time monitoring and protection against ransomware attacks that attempt to encrypt files and hold them for ransom.Anti-Ransomware uses behavioral detection technology to identify ransomware behavior patterns. It monitors processes running on a system looking...
