* Sending Mail to Local User.

  Enter the user's handle, or user #.

* Sending Mail to Network User.

  After selecting network, enter the user's network address,
  in the format:

  <user #>@<node #>             (For VirtualNET and WWIVnet type networks)
  <user name>@<node address>    (For FIDOnet and UUCP type networks)