CFMAIL tag

In order for the CFMAIL tag to work, your code for the tag  needs to be set to localhost as the server, it also needs to have a valid To & From format and Subject. (Those 3 fields are required, below is a sample script with additional options.)

<cfmail to = "recipient"
  from = "sender"
  cc = "copy_to"
  Bcc = "blind_copy_to"
  subject = "msg_subject"
  type = "msg_type"
  maxRows = "max_msgs"
  MIMEAttach = "path"
  query = "query_name"
  group = "query_column"
  groupCaseSensitive = "Yes" or "No"
  startRow = "query_row"
  server = "servername"
  port = "port_ID"
  mailerID = "headerid"
  timeout = "seconds"> 

http://www.adobe.com/livedocs/coldfusion/5.0/CFML_Reference/Tags65.htm