1)   Interactive DNS Query 1.2
Interactive DNS Query is a program designed to allow you to perform a query of DNS records. It is similar to the unix "dig" or "nslookup" commands, and uses a convenient GUI interface. Query for all types of DNS records, include A, MX, TXT, NS, ...

 2)   ANSMTP SMTP Component Build 7.1
Powerful, easy- to-use and full-featured SMTP email component enables your ASP, VB, VBA, VC++, C#, VB.NET, JScript.NET, ASP.NET or other COM environment applications to send rich TEXT/HTML email based on SMTP/ESMTP protocol. Support IPv6.

 3)   EASendMail SMTP Component (.NET Edition) 2.0
Powerful, easy- to-use and full-featured SMTP email component enables your C#, VB.NET, JScript.NET, ASP.NET or other .NET framework applications to send rich TEXT/HTML email based on SMTP/ESMTP protocol. Featured examples are included.

 4)   Site Status Checker 2.1
Site Status Checker is an Internet Software that includes tools like: Site's List Management, Traceroute, DNS Lookup, Finger, WhoIs, FTP Client, Internet Browser and Time Synchronize. Site's List Management allow to check whether site is alive or not

 5)   EAGetMail POP3 & IMAP4 Component (.NET Edition) 1.0
EAGetMail enables your C#, VB.NET, JScript.NET, ASP.NET or other .NET framework applications to parse and receive email based on POP3/IMAP4 protocol. Many advanced features are supported including TNEF parser (winmail.dat) and S/MIME.

 6)   AdRem iTools 4.0
AdRem iTools is a networking toolset combining Ping, Traceroute, DNS Lookup, SNMP viewer, port/network/bandwidth scanner, and more. The tools’ output can be saved to a file (text, XML, HMTL, or Excel), while Ping or Traceroute tests can be graphed.