setting dashboard domain now only updates dashboard domain (and not mail)

part of #721

src/cloudron.js

@@ -13,7 +13,7 @@ exports = module.exports = {
 
     prepareDashboardDomain: prepareDashboardDomain,
     setDashboardDomain: setDashboardDomain,
-    setDashboardAndMailDomain: setDashboardAndMailDomain,
+    updateDashboardDomain: updateDashboardDomain,
     renewCerts: renewCerts,
 
     setupDashboard: setupDashboard,
@@ -317,19 +317,18 @@ function setDashboardDomain(domain, auditSource, callback) {
 }
 
 // call this only post activation because it will restart mail server
-function setDashboardAndMailDomain(domain, auditSource, callback) {
+function updateDashboardDomain(domain, auditSource, callback) {
     assert.strictEqual(typeof domain, 'string');
     assert.strictEqual(typeof auditSource, 'object');
     assert.strictEqual(typeof callback, 'function');
 
-    debug(`setDashboardAndMailDomain: ${domain}`);
+    debug(`updateDashboardDomain: ${domain}`);
 
     if (settings.isDemo()) return callback(new BoxError(BoxError.CONFLICT, 'Not allowed in demo mode'));
 
     setDashboardDomain(domain, auditSource, function (error) {
         if (error) return callback(error);
 
-        mail.onMailFqdnChanged(NOOP_CALLBACK); // this will update dns and re-configure mail server
         addons.restartService('turn', NOOP_CALLBACK); // to update the realm variable
 
         callback(null);