Security

• AmAvIs
  AMaViS-ng is a modular rewrite of amavisd and amavis-perl. It scans email for malicious code inside attachments and archive files, stopping delivery if malicious code is found. ...
  
• qmail-scanner
  QMail-scanner scans e-mail attachments for viruses using third-party virus scanners available for UNIX environments. It has been written specifically for the Qmail MTA, replacing the qmail-queue proc...
  
• avast! Linux Home Edition
  ...
  
• TkAntivir
  TkAntivir is a graphical frontend to the Linux antivirus program H+BEDV AntiVir for Linux written in Tcl/Tk. ...
  
• openprotect
  Opencomputing Technologies provides Server Side E-Mail Protection(AntiVirus, AntiSpam and Content Filtering) using OpenProtect - An Open Source E-Mail Filtering Solution for Linux E-Mail Servers. MTA...
  
• protector
  protector scans e-mail attachments in order to identify those that could (by nature of their type) contain viruses or other undesirable content, and replaces them with a warning message. Protector is...
  
• ClamTk
  ClamTk is a Perl-Tk GUI front end for ClamAV. It is designed to be an easy-to-use, point-and-click virus scanner for Linux systems. ...
  
• qscan
  qscan is a Perl script which enables Sendmail to scan all queued email and rename any file attachments from .vbs to ~vbs, .vbe to ~vbe, etc. It can be customized to change any file extension or to re...
  
• Mikrop
  Mikrop is a small, easy to install program for mail servers to scan incoming email. It's currently integrated with only postfix MTA. ...
  
• m0n0wall
  m0n0wall is a project aimed at creating a complete, embedded firewall software package that, when used together with an embedded PC, provides all the important features of commercial firewall boxes (...
  
• MIME Defanger
  MIME Defanger is a flexible MIME e-mail scanner designed to protect Windows clients from viruses. It can alter or delete various parts of a MIME message according to a very flexible configuration fil...
  
• Yet Another antiVirus Recipe
  Yet Another antiVirus Recipe is a procmail that helps to filter out a lot of the most common e-mail worms. ...
  
• KAVClient
  KAVClient is a C language interface to the Kaspersky Anti-Virus daemon. It allows users to check files and memory for viruses. ...
  
• POP3 Virus Scanner Proxy
  POP3 Virus Scanner Proxy is a full-transparent proxy daemon which scans all mails for viruses using third party scanners (built-in support for AVPD and Trophie). ...
  
• MultiGate
  MultiGate provides an easy and integrated solution designed to secure and protect networks. ...
  
• OpenAntivirus ScannerDaemon
  ScannerDaemon is the virus scanner of the OpenAntivirus project. You can send a filename to it via simple TCP and it will scan the file for viruses and tell you if the file is infected or not. ...
  
• OpenAntiVirus samba-vscan
  samba-vscan provides on-access scanning of Samba shares with ClamAV (clamd and libclamav), F-Secure AV, FRISK F-Prot Daemon, Kaspersky AntiVirus, OpenAntiVirus.org ScannerDaemon, mks AntiVirus, NAI/M...
  
• Viralator Proxy Virus Scanner
  Viralator enhances your network's squid proxy server with a virus scanner. Before a user can download a file, the proxy passes the file to the Viralator script which, in turn, uses a virus scanner to...
  
• EmailScan
  EmailScan scans incoming multipart email for bad file types, filenames, and virii using procmail. It currently uses uvscan from Network Associates for virus scanning. ...
  
• avpmilter
  avpmilter is a sendmail milter interface to the Kaspersky antivirus daemon. ...
  
• mod_clamav
  mod_clamav is a virus scanning module which uses the Clam Antivirus (clamav) package to scan Web traffic for viruses. ...
  
• MailScanner
  MailScanner is an email virus scanner, vulnerability protector, and spam tagger. It supports the Postfix, Sendmail, Exim, Qmail, and ZMailer MTAs, and the Sophos, McAfee, F-Prot, F-Secure, CommandAV,...
  
• BSscanmail
  BSscanmail scans all incoming e-mails for known viruses. If it finds one, it deletes it and automatically sends a 'warning mail' to the sender and the receiver of that e-mail. ...
  
• Sophie
  Sophie is a daemon which uses 'libsavi' library from Sophos anti-virus vendor (http://www.sophos.com). On startup, Sophie initializes SAPI (Sophos Anti-Virus Interface), loads virus patterns into mem...
  
• Virge
  Virge is mail scanner written in C. It requires Sendmail or Postfix, and AVPDaemon, Sophie, or Trophie (for virus checking). ...