install email packages into images

src/freedombone-image-customise

@@ -1223,6 +1223,12 @@ function image_install_nodejs {
     fi
 }
 
+function image_install_email {
+    chroot "$rootdir" apt-get -yq remove postfix
+    chroot "$rootdir" apt-get -yq install exim4 sasl2-bin swaks
+    chroot "$rootdir" apt-get -yq install libnet-ssleay-perl procmail
+    chroot "$rootdir" apt-get -yq install dovecot-imapd
+}
 
 ##############################################################################
 
@@ -1404,6 +1410,7 @@ configure_user_interface
 image_setup_utils
 image_install_inadyn
 image_install_nodejs
+image_install_email
 
 # remove downloaded packages
 chroot $rootdir apt-get -y autoremove