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A step by step guide to configuraing an Open source mail gateway for anti-spam and anti-virus filtering
Gentoo mailfiltering gateway guideThis guide describes step by step how to install a spam and virus filtering mail gateway. It is quite simple to adopt this to a single server solution.
Fighting malware and spam with PostfixThis paper demonstrates how to use the filtering capabilities of Postfix to perform high-level content filtering including:
* Dropping potentially hostile attachments such as .EXE and .VBS files
* Preventing MS Outlook from auto-executing unknown attachments
* Preventing MIME and HTML exploits
* Disabling "web bugs" that spammers use to track recipients
* Identifying spam based on message content
This is intended as a step-by-step guide to setting up an anti-spam e-mail gateway utilizing some of the most effective tools available. While these instructions may be adapted to other configurations, they are written for a Debian Linux installation.
Amvisd-Newamavisd-new is a high-performance and reliable interface between mailer (MTA) and one or more content checkers: virus scanners, and/or Mail::SpamAssassin Perl module. It is written in Perl, ensuring high reliability, portability and maintainability. It talks to MTA via (E)SMTP or LMTP protocols, or by using helper programs. No timing gaps exist in the design, which could cause a mail loss.
Postfix, Amavis, ClamAV, and SpamassassinHow To Install Postfix, Amavis, ClamAV, and Spamassassin on Debian Linux
Spamfilter EMail Relay Server GuideThe new home for The Origional Scott Henderson SPAMFILTER EMAIL RELAY SERVER GUIDE document, and past configurations is FreeSpamFilter.org.
SpamAssassin and Amavisd: Go Ninja On Your UBE WoeThis article, which shows how to use SpamAssassin with Postfix, is the first in a series on building an anti-spam and anti-virus gateway.
Fairly Secure Anti Spam WikiFairly-Secure Anti-SPAM Gateway Using OpenBSD, Postfix, Amavisd-new, SpamAssassin, Razor and DCC
Abuse.Net - Open Relay TestTest to see if your mail server is an open relay
Postfix SASL HowtoPeople who go to the trouble of installing Postfix may have the expectation that Postfix is more secure than some other mailers. The Cyrus SASL library is a lot of code. With SASL authentication enabled in the Postfix SMTP client and SMTP server, Postfix becomes as secure as other mail systems that use the Cyrus SASL library.
Integrating ClamAV with AmavisVery brief article explaining the basics of how to setup Clam Anti-Virus with AmavisD and postfix.
Rules Du JourRulesDuJour is a bash script intended to automatically download new versions of SpamAssassin rulesets as the authors release new versions. RulesDuJour is based on bigevilwget, which came across SA-Talk sometime back.
SecPoint - Intrusion Prevention IPS Anti-Spyware ANetwork Security Intrusion Prevention IPS Anti-Spyware Anti-Spam Firewall and Vulnerability Assessment. IDS Security Vulnerability Scanner
SUSE 9.3 - Anti-Spam/Virus Gateway Complete GuideA complete step by step guide on how to install and configure everything you'll need to build a full loaded anti-spam gateway.