Free antispam software for linux

Kmail POP filter with antispam/scoring contains improvements for KMAIL POP filters.

Read the content of file README for the use information and for applying the patch.

Filter rules with action with one score value (only for kde-3.5.x)

- The porting for the other versions will come make only from request.
- This is useful to set up one action on a message from match the more filter rules (as an example, a rule on XP, rolex and another on best, price, and ....)
- The action is set up when the sum of score value is at least 100%.

For kde 3.x

- Highlight of the e-mail marked for the download or the delete.
- Tool-tips on the text that exceeds the dimension of the columns.

- Ordering also for type action.
- Set action to delete of the messages that have one type of action or they are old at least X of days.

- A single key press (key D, E, L, Up, Down) for every message (stop of, watches, selection, watches, sets up, for every message).

- Use of one single list view for all the various types of match message-filters.
- Adding for every message the visualization of the name of filter that is matched with the message.
- Possibility of, easy and quickly, to see only the messages that they correspond to one action.

- Filter from to the header of the body of the message (therefore it is possible to filter for the name of the file attached).
- Filter from initial rows of the body of the message.
- The user can specify the minimal and maximum number of rows of the body of the message to download (the number of rows comes calculated in proportion to the dimension of the message) .

Quinti Secure Contact Form is a contact form for Web pages that is not vulnerable to robots who would abuse such forms for sending spam.
It uses both JavaScript field validators and CAPTCHA for verifying the validity of the sender. Quinti Secure Contact Form is easy to install and configure, and uses valid XHTML 1.1.
I have been attacked thousand times by spammers from my contact form, they use robots and take advantage of certain vulnerabilities of the mail forms to send their spam, and fill up my mailbox up to such an extent that they make your mail practically useless.
There are two ways of tackling this problem: Introducing a CAPTCHA validated through JavaScript, as i explain later.
And introducing certain functions in PHP that prevent these attacks, as you will see in the examples below
At the moment, go to the problem.
Main features:
- Invulnerable secure antispam contact form,
- JavaScript field validator in php (to insert multi-language variables and other variables, if you wish)
- Prevent spammers from using your form to send garbage, guaranteed.
- CAPTCHA to avoid Javascript validated Spam
- Easy to install and configure
- Valid XHTML 1.1

Endian Firewall is a "turn-key" linux security distribution based on IPCop that turns every system into a full featured security appliance. Endian Firewall has been designed with "usability in mind" and is very easy to install, use and mange, without loosing its flexibility.
The features include a stateful packet inspection firewall, application-level proxies for variuos protocols (HTTP, POP3, SMTP) with antivirus support, virus and spamfiltering for email traffic (POP and SMTP), content filtering of Web traffic and a "hassle free" VPN solution (based on OpenVPN). The main advantage of Endian Firewall is that it is a pure "Open Source" solution that is commercially supported by Endian.
Main features:
Based Module:
- Firewall (statefull inspection)
- Outgoing Firewall
- IPSec Gateway to gateway VPN
- IPSec Remote client to gateway VPN (roadwarrior)
- NAT
- Multi-IP address support (aliases)
- Dynamic DNS
- DMZ support
- HTTPS Web Interface
- Detailed network traffic graphs
- View currently active connections
- Event log management
- Log redirection to external server
- Server DHCP
- Server NTP
- Traffic Shaping / QoS
- Transparent POP3 antivirus/antispam proxy
- Transparent HTTP proxy
- Web Proxy with local users, windows domain, samba, LDAP, radius server management
- Intrusion Detection System
- ADSL modem support
- Configuration backup and restore
- Remote update
Advanced Antivirus Module:
- HTTP Antivirus
- Endian Security Tools for Windows Desktop
- Transparent SMTP antivirus/antispam proxy
VPN Gateway Module:
- Gateway to gateway VPN with OpenVPN (http://openvpn.net/)
- Remote client to gateway VPN (roadwarrior) with OpenVPN (http://openvpn.net/)
- Bridged and Routed VPN mode
- Endian Client VPN ? Windows, Linux, MacOSX
Web Content Filter Module:
- URL filter
- Web content analysis/filter
- Whitelists and blacklists management
- Web surfing time limits
Enhancements:
- SATA support is now again working
- A wizard after installation asks to set the passwords (root, admin)
- Added possibility to restore a backup directly after installation
- Fix for blocking incoming connections coming in through the VPN [#210]

ClarkConnect is a powerful yet easy-to-use software package that transforms off-the-shelf server hardware into a dedicated Internet firewall, gateway or server.
ClarkConnect is a great solution for schools, businesses, organizations, and home offices.
ClarkConnect transforms standard PC hardware into either:
- a dedicated firewall/gateway for your network, or
- a standalone server on your local network
The award-winning Linux-based solution includes firewall and security tools, along with file, print, web, e-mail, proxy, antivirus, antispam, content filtering, VPN servers and more. A detailed feature list is shown in the sidebar below.
Easy to Install and Manage
The software is easy to install on off-the-shelf hardware ... you can be up and running in minutes.
- purchase a CD, or download burn your own
- insert the CD into the server system
- start the server from the CD
- follow the installation wizard
Once you have your ClarkConnect system up and running, you can configure the server/gateway with an easy-to-use web-based administration tool.
Integrated Updates and Managed Services
- ClarkConnect includes integrated Gateway Services (GS). to update, manage and monitor your system.
- 24/7 port and resource monitoring
- DNS services, including dynamic DNS
- antivirus protection
- antispam tools
- content filter updates
- managed/dynamic VPN
- daily security audits
- intrusion detection updates
- e-mail/MX backup
Different Needs... Different Solutions
We offer three different editions of the ClarkConnect software. Each edition solves different needs.
Professional Edition - Firewall and Gateway
The Professional Edition is a firewall solution that protects your network from the constant hazards lurking on the Internet. The software includes a stateful firewall, antispam protection, antivirus protection, content filtering, managed VPN, intrusion prevention, and more.
Office Edition - All-in-One Gateway/Server
The Office Edition includes not only the core security features found in the Professional Edition, but also server features: file server, print server, web server, advanced mail server, and database server.
Home Edition - Home and Hobbyist Solution
The Home Edition is designed for home use -- we include extras such as MP3 support, online photo albums and computer security model appropriate for a home environment.
Main features:
- IPsec VPN
- PPTP VPN
- Managed/Dynamic VPN
- 1-to-1 NAT support
- DMZ support
- Stateful Firewall
- Intrusion detection
- Intrusion prevention
- Antispam
- Antivirus (license req.)
- SMTP authentication
- SMTP gateway
- SMTP server
- POP and IMAP servers
- Webmail
- Banner ad blocking
- Web proxy
- Content filtering
- Bandwidth manager
- DSL (including PPPoE)
- Cable Modem
- 802.11b Wireless
- Internal DHCP server
- Caching DNS server
- Hardware and Software RAID
- multi-processor support
- Web-based configuration
- Optional Webmin package
- Apache web server
- Support for CGI and PHP
- Secure/SSL support
- FTP server
- Windows file server
- AppleShare file server
- Print server support
- Printer sharing
- MySQL Database
Whats New in 4.1 Stable Release:
- File server antivirus; Samba PDC (Primary Domain Controller) support; improved server and LAN backup features; new greylist and blacklist support for the antispam engine; greylist antispam engine; e-mail disclaimer; e-mail virtual domain support; e-mail catch-all mailbox support; webmail administration tools; the backup and restore system settings now includes the user database; the firewall has changed to accommodate the new Hot LAN and Blocking features...
Whats New in 4.2 Alpha 1 Development Release:
- ClarkConnect Community 4.2 Alpha 1 is available. Though it has only been four months since the last release, version 4.2 brings quite a few new features. This alpha build is intended for developers, integrators and curious users. Typical uses for this alpha build: final integration testing for third party developers; testing new hardware and drivers with the Linux 2.6.18 kernel; getting a sneak preview of the upcoming 4.2 release. This is alpha software, so quite a few software modules are still incomplete or not well tested. The most important known issues are: Webconfig template graphics and icons are incomplete; graphical console tool does not display on the screen properly....

Clapf project is a clamav based network filter for postfix. Now clapf includes an experimental bayesian antispam module.

PHP Photo Album provides an easy to install and run PHP Photo Album/Gallery script.
It is easy to install and run PHP Photo Album/Gallery script. No database required. Automatic installation on your FTP-server with just a few clicks. You have in a seconds functional phpAlbum.
Caching of all generated thumbnails and resized photos, password directory protection, access logs, automatic thumbnails generation, short and longer description of directories and photos, admin section for creating new directories, uploading photos and deleting of them. Works also with safe_mode="on" because of using FTP.
Separated Layout(HTML) code from functional one. Two themes aviable, more under construction. Higly customizable colors and texts. Logo generator. And many new features comming soon ... so try it!
Main features:
- Automatic generation of thumbnails and resized
- Commenting of pictures with antispam security code
- Screenshots for files to be downloaded, movie, audio, exe or whatever
- Password protection for your private galleries
- Admin section for creating new directories, uploading photos (works even with PHP safe_mode=on)
- NEW! Uploading ZIP Files preserving directory structure
- Short and long description of galleries/directories and photos
- Highly customizable layout, separated layout(HTML) from functional code, this allows easy creation of new themes
- Caching of all generated thumbnails and resized photos
- Transparent logo and icon processing with any background color, including IE6
- Access logging, with exclude strings
- And last but not least, you can help us with your suggestions to create usable, easy to install, php photo album script.

Open WebMail is a webmail system based on the Neomail version 1.14 from Ernie Miller. Open WebMail is designed to manage very large mail folder files in a memory efficient way.
OpenWebMail also provides a range of features to help users migrate smoothly from Microsoft Outlook to Open WebMail.
Main features:
For Users:
- Auto Login
- Multiple Languages/Multiple Charsets
- Strong MIME Message Capability
- Full Content Search
- Draft Folder Support
- Confirm Reading Support
- Spelling Check Support
- vCard compliant Addressbook
- POP3 Support
- Mail Filter Support
- AntiSpam Support through SpamAssassin (http://www.spamassassin.org)
- AntiVirus Support through ClamAV (http://www.clamav.net)
- Calendar with Reminder/Notification Support
- Webdisk Support
- HTTP Compression
For System:
- Fast Folder Access
- Efficient Message Movement
- Smaller Memory Footprint
- Graceful File Lock
- Various Authentication Modules
- PAM support
- Remote SMTP Relaying
- Virtual Hosting
- User Alias
- Pure Virtual User Support
- Per User Capability Configuration
- Persistent Running through SpeedyCGI

b2evolution is a classy news/weblog tool (aka logware), i-e software allowing you to run newsfeeds and weblogs.
It does basically the same thing blogger.com and typepad.com do, but with two main differences:
b2evolution is free as free can be! (GNU General Public License). It runs on your own domain/website. That means you need a host which can run web applications written in PHP.
Main features:
- Advanced browsing (paged, calendar, categories, search.
- Extended & multipaged posts;
- Image/file upload;
- Multiple and sub-categories;
- Draft and quick publishing;
- Spell checker;
- RSS & Atom feeds;
- Bookmarklet and sidebar blogging;
- Blog with a desktop client (w.bloggar, etc...);
- Automatic pinging of blog directories;
- Simple installation;
- Skin switching;
- Localized in many languages;
- Multilingual blogging;
- Timezone handling;
- Multiple blogs;
- Web standards compliance with integrated XHTML checker;
- Clean and search engine friendly permalinks;
- User rights management;
- Private/protected posts;
- Open/closed/disabled comments;
- Trackback & feedback;
- Integrated hitlogs and stats;
- Anti-blogspam (referrer & comments);
- Plug-in architecture;
- Advanced rendering plug-ins (Textile, Auto-P, BBcode.
Enhancements:
- Fixed "basic antispam de-activates itself". (blueyed)
- Fixed inclusion of sub-categories in item list (e.g. ?cat=1). (blueyed)
- Fixed handling of formats in pre-rendering content. You should delete the cache from the "Tools" menu after upgrading. (blueyed)
- Some more minor fixes.