- Add missing application tags

- A little rewording
- A punctuation fix

en_US.ISO8859-1/books/handbook/mail/chapter.sgml

@@ -1144,7 +1144,7 @@ freefall		MX	20	who.cdrom.com</programlisting>
     <para>The <application>sendmail</application> configuration that ships with FreeBSD is
       designed for sites that connect directly to the Internet.  Sites
       that wish to exchange their mail via UUCP must install another
-      sendmail configuration file.</para>
+      <application>sendmail</application> configuration file.</para>
 
     <para>Tweaking <filename>/etc/mail/sendmail.cf</filename> manually
       is an advanced topic. <application>sendmail</application> version 8 generates config files
@@ -1154,7 +1154,7 @@ freefall		MX	20	who.cdrom.com</programlisting>
       <filename>/usr/src/usr.sbin/sendmail/cf</filename>.</para>
 
     <para>If you did not install your system with full sources, the
-      sendmail config stuff has been broken out into a separate source
+      <application>sendmail</application> configuration set has been broken out into a separate source
       distribution tarball. Assuming you have your FreeBSD source code
       CDROM mounted, do:</para>
 
@@ -1313,7 +1313,7 @@ parse            returns: $# uucp-dom $@ <replaceable>your.uucp.relay</replaceab
       mailqueue as soon as your Internet connection is established.
       To do this, put this command after the
       <command>fetchmail</command> command in
-      <filename>/etc/ppp/ppp.linkup</filename>.</para>
+      <filename>/etc/ppp/ppp.linkup</filename>:</para>
 
     <programlisting>  !bg su user -c "sendmail -q"</programlisting>