-.BR clientname :
-.RS 5
-This option specifies the host name that
-.B nmh
-will give in the
-SMTP
-.B HELO
-(and
-.BR EHLO )
-command, when posting mail. If not
-set, the default is to use the host name that
-.B nmh
-considers local
-(see
-.B localname
-above). If this option is set, but empty, no
-.B HELO
-command will be given.
-.PP
-Although the
-/B HELO
-command is required by RFC\-821, many SMTP servers
-do not require it. Early versions of
-.I SendMail
-will fail if the hostname
-given in the
-.B HELO
-command is the local host. Later versions of
-.I SendMail
-will complain if you omit the
-.B HELO
-command. If you run
-.IR SendMail ,
-find out what your system expects and set this field if needed.
-.RE
-.PP
-.BR systemname :
-.RS 5
-This option is only used for UUCP mail. It specifies the name of the
-local host in the UUCP \*(lqdomain\*(rq. If not set, depending
-on the version of UNIX you're running,
-.B nmh
-will query the system
-for this value. This has no equivalent in the
-.B nmh
-configuration
-file.
-.RE
-.PP