Mark,
It's called a signature file. Check your email client's help files to determine how to do this.
Matt A+, MCP, MCP+I, MCSE Windows NT 4.0, MCSE Windows 2000 Early Acheiver with Security Emphasis
Any advice I give is my best judgement based on my interpretation of the facts you supply.
Help increase my knowledge by providing some feedback, good or bad, on any advice I have given and if you like my advice, please mark it as helpful.