Task Administrator   
http://saturn-7.com

Remote process monitor with Alert function and advanced process analyse. Allow lookup remote computer process list, realtime data filter. Enable 4 process group by right. Windows domain or windows workgroup based network is required. Allow monitor computers throw the internet (Administration access is required). 30-days trial period and 3 computers limitation. Fast and easy interface, functional statistics and analyse with graphical chart. 5 different type of statistics and chart graphical. Many filter options.

LiteMail   
http://www.cmfperception.com

LiteMail is an easy to use mail server that includes unlimited addresses, unlimited domains, forwarding, relaying, SMTP Authentication, a catch-all address and quotas. Integrated DynDNS and No-Ip dynamic DNS clients help make LiteMail a complete and convenient server solution. The administrator is given a precise log of everything that occurs and has the ability to monitor and kill connections.

SpamSource   
http://www.daesoft.com

SpamSource helps collect information from messages for use in reporting unsolicited junk email. Quickly and easily retreives the email message header and body information for use in Spam Reporting services, notifying email administrators.

DEKSI Network Monitor   
http://www.deksoftware.com

DEKSI Network Monitor is an advanced, powerful, and feature rich tool that monitors servers located on your local network and the Internet. DEKSI Network Monitor will allow the Administrator to increase the reliability and productivity of your corporate servers. After problems are found on the monitored servers DEKSI Network Monitor will first try to correct the problems. If DNM cannot correct the problems it immediately notifies the Administrator about the problem via e-mail, sms or a network messaging service. Using DEKSI Network Monitor the Administrator is aware about the state of their servers at any time. The program can be installed on any Windows 95, NT, 2000, XP, Server 2003 machine and can monitor the servers with any operating system (Windows, Linux, Unix, etc.)

RelayTest   
http://www.digiarch.org

Relay Test Pro is a tool for network administrators, that allows to test a specified mail server for open relays. It runs series of tests designed to detect open relays and create a detailed report of the findings. The test data can be automatically updated from the web to catch-up with the latest tricks used by spammers. Relay Test Pro is not designed to find vulnerable mail servers - it only scans one server at a time. Key features: Automatic web updates for the test data. Auto and manual test mode. Reference numbering for each test. Real time communication report. Result report with comments.