MELMS Pro 

Email list management and mailing system. Features include: automated subscriber/unsubscriber management, email notification for new subscribers, compose and send emails to subscribers, help system including tutorials and much more!
email smtp client e-mail address management mailing list capture quick signature validate validation

WorkgroupMail Mail Server 

WorkgroupMail is a full featured mail server, which can provide any size organization with secure and dependable messaging.
mail server mail server e-mail internal mail internal spam filtering

Babastik's AntiSpam Personal 

The no nonsense, no compromise solution to stopping unsolicited email from cluttering your inbox. For Microsoft® Windows 98/Me/NT/2000 and XP.
anti-spam spam email inbox

Big:eye 

Maps(AutoDiscovery),Business Views,Monitoring,Fault Management,Remote Control,Inventory management,Software distribution,Web based reports,Performance Monitoring,Application monitoring,Network printer monitoring,network traffic anayze,License manager
network monitoring inventory management application monitoring syslog deamon snmp network management cisco motorola windows policy management

Little:eye 

-Maps(AutoDiscovery) -Monitoring -Fault Management -Remote Control -Inventory management
network monitoring inventory management application monitoring syslog deamon snmp

Ace Password Sniffer 

The most powerful and effetive password sniffer. Ace Password Sniffer can listen on your LAN and enable network administrators or parents to capture passwords of any network user. Currently it can capture passwords of http, ftp, smtp, pop3, telnet.
password sniffer http password ftp password password tool pop3 password smtp password telnet password