Plesk Plesk is a software package which allows a server administrator to set up new websites, e-mail accounts, and DNS entries through a web-based interface. The administrator can create client and site templates, which predetermine resource allocation parameters for the domains and/or clients.

POP In computing, local e-mail clients use the Post Office Protocol version 3 (POP3), an application-layer Internet standard protocol, to retrieve e-mail from a remote server over a TCP/IP connection. POP3 and IMAP4 (Internet Message Access Protocol) are the two most prevalent Internet standard protocols for e-mail retrieval.

Putty A free SSH client for windows.