Free monitor email server software for linux

The Email Server is designed to provide services offered by its commercial email products, such as IMAP/POP services, Web-Based Email Interface and Administration, Mail Filtering, Spam Blocking and Directory-Based Authentication and Addressbooks.
RH Email Server is fine for businesses and organizations of all sizes. Multiple commercial and educational installations are already using this project. The largest current user load that has been reported is 7,000 + users.
Interoperability between RHSD projects such as the RHSD Email Server and the RHSD Domain Controller will allow for use of Single-Sign On. RHSD also utilizes IETF Standardized projects and therefore will be compatible with any Directory system compatible with LDAP v.3.
Main features:
- Web-Based Email Client for Users
- LDAP Directory / Authentication
- Mail Filtering
- Addressbooks
- Web-Based Administration Tools
- Role-Based Tool Delegation
- Spam Blocking

Virtual server monitor (vsmon) is a monitoring tool for Linux-VServer that gives a system administrator a global view of all vservers running on his park.
For now, it does not offer control over the vservers life cycle (e.g. provisioning, start, stop, and restart operations). To use vsmon, you must deploy one backend on each vserver host and one frontend, preferably in its own vserver.
Enhancements:
- The frontend was reworked to display a summary of all hosts.
- An owner can be assigned to each vserver.
- The backend can be used on hosts without Linux-VServers, and it no longer obtains IP addresses.
- The libdnet dependency was removed.
- The parsing of /proc/"pid"/stat now works for kernel 2.6.18.
- A Nagios plugin was added, which enables the use of the vsmon backend to monitor a host disk, memory, and swap.
- The plugin monitors all mount points according to an "intelligent" algorithm, which determines warning and critical thresolds as a function of the total size of the partition.

GNOME Personal Web Server is a user friendly web server with GUI included in GNOME-Network.

vSMP Monitor is the SuperKaramba theme that i have been modifying with time and finally decided to post it.

It is a melting pot of many other themes which i have mentioned in the theme file. Hope you like it.

** Note background is from unknown origin all credit goes to the author!

Sleek Monitor is a combination of basic monitors for:
- OS
- KDE
- Kernel
- CPU & cache
- GPU & GPU Temp
- Memory
- Wired & Wireless networks
- battery with time
- date and calendar

Tarmail application is an e-mail server that resists abuse. You can use tarmail as a full-featured standalone e-mail server, or as a shield for your main mail servers, or as a trap for unsolicited mail. Tarmail is written in C and released in source-code form.
Tarmail is released under the terms of the GPL version 2. You must accept this license agreement before downloading tarmail.
Tarmail is written in C and is designed to be able to run on any platform that properly implements the BSD Sockets interface. The number of dependencies has been minimized as much as possible.
Note that Tarmail is currently in development. This means that you should not expect it to be completely problem-free. Every effort has been made to try and make tarmail as solid as possible, but this is no guarantee. It could crash, it could spin out of control and generate a storm of messages, and things like that. If you do find a bug in tarmail please let me know.
Important: This software is offered AS-IS without warranty of any kind. You use this software at your sole risk and expense. In no event shall the author of this software be liable for any damages.
Enhancements:
- Several major speedups in message body handling.
- This release runs well on a 486.
- There are miscellaneous bugfixes in smtp.c.

GNU-Monitor is a transactional monitor that allows client/server applications to be developed with minimal effort.
GNU-Monitor project consists of transaction routing modules that ensure data integrity and recovery on abnormal termination.
Enhancements:
- New services .get_server_list and .get_service_list to get configuration info using the gm_cfgview tool.
- A new service .log-level to dynamically change levels of information on log files.
- A final solution for some transaction bugs.

Orange Monitor is a system monitoring theme for SuperKaramba.
Main features:
- CPU Load and Temperature (mbmon)
- Used RAM
- Used Space on hda and hda2 (customizable)
- Bandwidth Spent (bars are customizable , Incoming gets full @ 1GB and Outgoing @ 256MB by default)
- XMMS Controls (xmmsctrl)
Inspired on:
- Yaxay Skin for Winamp3
- Pod Icons for LiquidWeather karamba
- SystemTux Karamba