In e-mail applications, a distribution list is a group of mail recipients that is addressed as a single recipient.
A greylist (also spelled graylist) is a list of e-mail addresses or domain names that a spam filter uses to identify suspected spam. If a message arrives from an address or domain on the list, it will be quarantined and then delivered to the subscriber only if the sender attempts to send the message again within a certain period of time... (Continued)
Part of Microsoft's .Net initiative, HailStorm is the company's plan to provide a single place on the Web where any individual user (who pays a fee) may securely store personal and financial information that can be shared with others when desired (for example, to pay for something at an online store).
A reverse proxy server is a proxy server that relays connection requests for inbound network traffic.
Sender ID is Microsoft's proposed e-mail sender authentication protocol designed to protect against domain spoofing and phishing exploits.
Windows Internet Naming Service (WINS), part of the Microsoft Windows NT and 2000 Servers, manages the association of workstation names and locations with Internet Protocol addresses (IP addresses) without the user or an administrator having to be involved in each configuration change.