install rmail program

postfix/postfix.spec

@@ -198,6 +198,9 @@ Provides:     MTA
       manpages=%{l_prefix}/man \
       setgid=no \
       sh INSTALL.sh </dev/null
+      %{l_shtool} install -c -m 755 \
+          -e 's;/usr/sbin/sendmail;%{l_prefix}/sbin/sendmail;g' \
+          auxiliary/rmail/rmail $RPM_BUILD_ROOT%{l_prefix}/sbin/rmail
     )
     
     #   post-adjust binaries