MailProxyOptions.js: use deleteEmpty flag for dnsbl_threshold

diff --git a/js/MailProxyOptions.js b/js/MailProxyOptions.js
index 3e9e244f02cfc7414a404fb952ae9038d803ec59..14e5f73e08f75be78799213ef24ea227451edbb5 100644 (file)
--- a/js/MailProxyOptions.js
+++ b/js/MailProxyOptions.js
@@ -22,7 +22,7 @@ Ext.define('PMG.MailProxyOptions', {
                        { deleteEmpty: true, defaultValue: Proxmox.Utils.noneText });
 
        me.add_integer_row('dnsbl_threshold', gettext('DNSBL Threshold'),
-                       { defaultValue: 1, minValue: 0 });
+                       { deleteEmpty: true, defaultValue: 1, minValue: 0 });
 
        var render_verifyreceivers = function(value) {
            if (value === undefined || value === '__default__') {