Free monitor email accounts software for linux

Link Monitor Applet is a GNOME Panel Applet displaying the round-trip time to one or more hosts in a bar graph.
Main features:
- full ICMP and ICMPv6 support
- configurable scale and delays
- HIG 2.0 compliance

PHP Accounts project is an open source web based accounts system.
Main features:
- Generation of pdf invoices, receipts, quotes
- Email invoice (pdf attachment) to clients
- Automated invoice reminders (sent via email)
- Timesheet system - great for consultants charging on an hourly basis
- Invoice wizard for quickly creating a fully itemised invoice
- Expenditure/Outgoings
- Cash flow reports
- Spreadsheet export

NAT Monitor is a tool to monitor hosts bandwidth usage in a Linux-NAT network.

A daemon collects data and clients display them (currently a GTK app with graph and a text version). It detects new hosts, saves up to 12 hours of data, and has a nice summary statistic.

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

As you probably know, Yahoo Mail does not provide free POP access to its users any more. You can still use your YM account for free, but you have to use a Yahoo Mail web site to access your account.
This is not very convenient as you always have to be online, you cannot use your favourite e-mail client to read your messages, and so on. You can easily immagine the disadvantages of having to manage all your corespondence via web.
When Yahoo disabled its free POP access, the first thing that came to my mind was to change my e-mail account. But then I realized, there are far too many people used to my current Yahoo Mail address, that I am used to my YM address very much too and I thought - if Yahoo closes a free service, the other services will follow sooner or later. So changing an e-mail service/account wasnt really solution.
That is when I have decided to write YoSucker as a simple portable perl application, that would simulate a user actions to retrieve my mail to my local inbox. Yahoo Mail Sucker simply connects to the Yahoo Mail web site, parses the HTML code and fetches new messages.
With time I have added lots of other features and functionality (like support for multiple accounts, support for procmail, support for local Yahoo Mail sites, for proxy connection and much more) but the basic idea still stay the same...
Main features:
- secure SSL login
- support for multiple accounts
- encrypted passwords for enhanced security
- transaction safe writes
- support for various folders (including BULK mail)
- support for multiuser environment
- support for multiple mailboxes in one config file
- support for procmail (output to a pipe)
- support for localized Yahoo Mail sites
- support for proxy
- support for basic proxy authorization
- support of command line parameters
- powerful digest feature for listing mailbox content
- handles virtually unlimited number of messages
- LeaveOnServer, EmptyTrash and OnlyNew features
- restore message unread flag feature
- powerful CLEAN option
- quota storage warning system
- session Respawn feature
Enhancements:
- This things been around too long be be a prototype any longer.
- Filtered the annoying "Yahoo! Domain Keys" message in From header

Aazmat Monitor is a SuperKaramba system monitoring widget.

It was adapted to meet office theme and added a few new monitors all of them are built into there own theme file so you can place them were you like.

Server Monitor is a theme which displays the status of your servers. Also you can start / stop them by clicking the names.

You cann add servers by editing the py-file. You may resize theme in the .theme-fille.

Based on vpn by N7DR (http://www.kde-look.org/content/show.php?content=39390).

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.