This variable is set if the hostname of the sender's address can be resolved to it's IP address. See the miscellaneous section for more on how this is done and special cases. This is useful if someone tries to conceal their address. Top of Page Actions Actions are evaluated when the expression has been determined to be true. That said, here are a list of all the actions and how to use them.
Some commands take several arguments.
For convenience, some commands which often take multiple words as an argument don't require this. The message is then marked to be deleted. Using Bounce and Leave is the equivalent of the forward command. For more on preparing a canned response and how to use them, see a later section. Using Forward and Leave after each other sets the message to be sent to your inbox.