Email Security Plus Built-In Antispam and Virus Protection
SmarterMail provides layered, enterprise-grade email protection with built-in intrusion detection and prevention, plus integrated antispam and antivirus. Features such as IDS, DoS protection, and other advanced safeguards help protect your mail server regardless of whether it’s running on Windows or Linux. Comprehensive spam filtering includes greylisting, SPF, DKIM, DMARC, and more plus support for both Rspamd and SpamAssassin, allowing you to run either solution on a remote server for maximum flexibility. SpamAssassin is also fully integrated into SmarterMail. To further protect your organization, ClamAV antivirus is included to detect and block malware, phishing attempts, ransomware, and other email-borne threats before they reach users.
Advanced Security Features
SmarterMail provides a secure, business-class email server with built-in protection against spam, phishing attacks, and unauthorized access at no extra cost. Enterprise-grade security for Linux and Windows email servers is included, ensuring your organization’s communications remain safe from evolving cyber threats. Key security features include:
- Robust Intrusion Prevention / Detection
- Password Policy Enforcement
- Two-Step Authentication (MFA)
- Email Harvest Attack Detection
- Denial of Service (DoS) Protection
- Brute Force Attack Prevention
- Whitelist / Blacklist
- SMTP Blocking
- Full geographic IP / country blocking
- Automated Security Events
Email Harvesting
Prevent intrusions via dictionary attacks and prevent bulk login attempts, "shotgunned" email addresses, common usernames, and more.
Brute Force Attacks
Prevent common brute force attacks by IP address, email address, or even password retrievals. Stack rules to first delay, then block, intrusion attempts.
Geographic Blocks
Ensure bad actors can't attempt Denial of Service attacks by blocking (or only allowing) authentication attempts from specific countries.
Rspamd and SpamAssassin
Benefit from the most popular Open Source antispam platforms: use Rspamd as an remote antispam appliance and SpamAssassin, which is a fully integrated spam check, but can also be used as a remote antispam appliance. Benefits include:
- Consistent updates from active Open Source communities
- Advanced heuristics and statistical analysis
- Scans email headers and body content (text analysis)
- Includes Bayesian filtering, DNS block lists, and collaborative filtering databases
- Full support from the Apache Software Foundation (ASF)
- Multi-layered email protection: content filtering, high-speed processing, and more
- Works on both Linux and Windows email servers
Enhanced Spam Checks
SmarterMail offers a number of pre-defined spam checks such as DKIM and SPF, Null Sender, Honey Pot, and Reverse DNS. Administrators can manage how each check is used (spool filtering and/or outbound SMTP) and the weight assigned when a check fails.
RBLs / URIBLs
Twelve of the most popular and reliable RBLs and URIBLs are included by default and are fully manageable by an administrator. Default lists can be removed, additional lists can be added, or any combination can be used, providing complete flexibility.
Custom Spam Checks
Add custom spam checks to help bolster what's included by default. Rules can be created based on headers, body text, or raw content using wildcards, Regex, and more using customized positive or negative weights that affect the overall spam score.
SpamFoo Antispam
Available as a paid add-on, SpamFoo Antispam is deeply integrated with SmarterMail, allowing system administrators, domain administrators, and end users to significantly improve the antispam performance of their SmarterMail server.
SpamFoo Antispam analyzes the meaning and intent behind a message instead of looking for specific words, phrases, or known patterns. Whether a spammer rewrites a phishing email, changes domains, or rephrases a scam, the underlying objective rarely changes. A message designed to deceive, manipulate, impersonate, or exploit still carries the same intent.
Users can even improve SpamFoo Antispam -- whether via webmail or an email client -- by moving messages from their Inbox to their spam folders, or vice versa.
ClamAV Antivirus
SmarterMail features effective, self-updating virus protection through ClamAV, the open-source antivirus engine for detecting malware, viruses, worms, and other threats.
SmarterMail also integrates with Microsoft Defender Anti-virus for enhanced security on Windows. Administrators also have the option to integrate third-party anti-virus solutions via command-line execution, providing an efficient option for high-volume mail environments.
