diff --git a/test/cloudron-backup-test.js b/test/cloudron-backup-test.js
index 8d04ee5..1fcb7cf 100644
--- a/test/cloudron-backup-test.js
+++ b/test/cloudron-backup-test.js
@@ -104,7 +104,21 @@ describe('Cloudron backup testing', function () {
         cloudron.checkMail(_.extend(owner, { to: 'admin' }), done);
     });
 
-    it('did receive mail to alias (using alias creds)', function (done) {
+    it('can send mail as alias', function (done) {
+        cloudron.sendMail(_.extend(owner, { from: 'admin' }), 'test+' + cloudron.fqdn() + '@cloudron.io', done);
+    });
+
+    it('did send mail as cloudron alias', function (done) {
+        imap.probe({
+            subject: common.regexp('Hi from e2e test - ' + cloudron.fqdn()),
+            from: common.regexp('admin@' + cloudron.fqdn()),
+            to: common.regexp('test+' + cloudron.fqdn() + '@cloudron.io'),
+            body: /This release depends on you/
+        }, done);
+    });
+
+    // this is not implemented. cannot auth using alias
+    xit('did receive mail to alias (using alias creds)', function (done) {
         cloudron.checkMail({ username: 'admin', password: owner.password, to: 'admin' }, done);
     });