Free pop3 port software for linux

pop3.proxy is a POP3 e-mail proxy. Recently I added spam and virus scanning. It also supports (on Linux platforms) transparent redirection.
Enhancements:
- Added clamav version to e-mail header.

popdns is a small daemon that aims at simplifying the use of DHCP-configured machines by allowing them to dynamically update their DNS entry using (nearly) any POP3-capable e-mail tool.

After having configured a new e-mail source (with the POP3 protocol), users are authenticated using their system password and popdns automatically updates the specified (or implied) DNS entry with the IP address of the connecting machine.

popdns makes all DNS modifications with plugins. The plugins are external programs (scripts or compiled programs) simply launched with the following arguments:

plugin ipaddress name [ name ... ]

Perl Pop3 is a POP3 server fully implemented in Perl.
The advantages over other POP3 servers are that it is not a memory hog, and can be used to connect to databases for authentication.
Also, its code is easy to extend for any other uses, like POP-before-SMTP and extended logging.
Main features:
- Does not read the mailbox into memory, it reads what it needs as it processes the mailbox, so its memory requirements are low.
- Most email delivery is just printing out to the client; this is done in a fast and efficient way.
- It uses the systems users in the default unix way, but it can be changed to read users off a database (using DBI/DBD). It is prepared to use the database right away and can be extended or configured to use existing systems.
- It can be use to solve the smtp authentication via popauth or relay-domains (with sendmail) so users can be permitted to send smtp mail after pop3 authentication. This has been an effective solution for roaming users.
- Logging can be extended beyond the use of text files to any other method available in Perl, including database systems.
- Also, security is not an issue, as input is strictly controlled.
Using an easily modifiable daemon as part of a e-mail solution can be of great advantage over other existing systems in other languages. Further development will also try to incorporate more easily configurable extensions and plugins, so rapid deployment and extensibility is achieved.
Installation:
For installation instructions and configuration please see the INSTALL file. For more detailed information, consult the DOC file.

TCP port scanner is a network scanner for Linux.

Installation:

1. Install - become root and gunzip/tar tcpscan-X-Y-Z.tar.gz.
2. Type ./confugure , make
3. Type install
4. Enjoy and try type tcpscan localhost
5. To get help - run tcpscan without parametres.

Usage:

tcpscan [-f] [hostname || IP_address]
tcpscan [-f] [first_IP_address] [last_IP_address]

FreePOPs is a POP3 daemon plus a LUA interpreter and some extra libraries for HTTP and HTML parsing. FreePOPss main purpose is translating local POP3 requests to remote HTTP actions on the supported web-mails, but it is really more flexible.
For example there is a plugin to read news from a website as if they were mails in a mailbox. You can easily extend FreePOPs on the fly, without even restarting it. You can add a plugin or modify an existing one simply changing the script file since the plugins are written in LUA and are interpreted on the fly.
Main features:
Usage
FreePOPs can be useful in some situations, here we give the most obvious ones:
- You are behind a firewall that closes the 110 port but you need to read your mail and the web-mail of your mail provider sucks.
- Your mail provider does not allow you to access your mailbox with POP3 protocol, but only through the web-mail service.
- You prefer looking at your mailbox instead of browsing some websites news.
- You have to develop a pop3 server in less than a week and you want it to be reasonably fast and not so memory consuming.
- You are not a C hacker, but you want to benefit from a fast POP3 server frontend written in C and you want not to loose a month in writing the backend in C. LUA is a really simple and tiny language, one week is enough to learn it in a way that allows you to use it productively.
Features
FreePOPs is the only software we know with these features:
- POP3 server RFC compliant (not full featured but compliant).
- Portable (written in C and LUA that is written in C, so everything is written in the most portable language around the world).
- Small (in the sense of resources usage) and reasonably fast.
- Extremely extensible on the fly using a simple and power ful language.
- Pretty documented.
- Released under the GNU/GPL license (this means FreePOPs is Free Software).
Enhancements:
- fixed an ancestral wrong compilation flag for regexes, no more REG_NEWLINE
- hotmail.lua: bumped to make them released again (gareuselesinge)
- supereva.lua: supereva plugin updates (gareuselesinge)
- libero.lua: fixed bug for attachments (gareuselesinge)
- libero.lua: changed pattern matching (gareuselesinge)
- hotmail.lua: Update the logout url and try to handle an expired session better. (russell822)
- libero.lua: bumped to make it released agaiN (gareuselesinge)
- supereva.lua, tin.lua: fixed attachments in tin and supereva, added dada.net (gareuselesinge)
- libero.lua: fixed mlex (gareuselesinge)
- aol.lua: Changed the AOL plugin to use the "classic" web interface. (russell822)
- added patch by Viruzzo to mimer and supereva.lua
- moved bpo build to etch

pyMap consists in a port scanner written in Python.

pyMap is a port scanner capable of ICMP, SYN, and FIN scans. It has been found to work on Windows XP and numerous Linux distributions.

CppUnit is a C++ unit testing framework. CppUnit project started its life as a port of JUnit to C++ by Michael Feathers.
Main features:
- XML output with hooks for additional data
- Compiler-like text output to integrate with an IDE
- Helper macros for easier test suite declaration
- Hierarchical test fixture support
- Test registry to reduce recompilation need
- Test plug-in for faster compile/test cycle (self testable dynamic library)
- Protector to encapsulate test execution (allow capture of exception not derived from std::exception)
- MfcTestRunner
- QT based graphic test runner