These are a mine of useful information, and should be your starting point when joining a new area. Not all mail addresses support this feature. Firewall A security system, to prevent unauthorised access. Flame A flame is a message filled with abuse. A message placed with the purpose of causing flames.
Some people get pleasure out of leaving such wind up messages.
FTP File Transfer Protocol. A way of collecting files, which is separate from the World Wide Web. You will often hear of FTP sites, where files are stored. This is sometimes called Anonymous FTP, because the remote site does not care who you are. HTML Hyper Text Markup Language.