-should be one or more items. Each item is the name of either a host
-or a net (in the latter case, precede the name of the net by a \\01).
-This list is searched when looking for a smtp server to post mail.
-If a host is present, the SMTP port on that host is tried. If a net
-is present, the SMTP port on each host in that net is tried. Note that
-if you are running with the BIND code, then any networks specified are
-ignored (sorry, the interface went away under BIND).
+should be one or more items. Each item is the name of a host which
+is (hopefully) running a SMTP server.