diff --git a/kallithea/lib/celerylib/tasks.py b/kallithea/lib/celerylib/tasks.py
--- a/kallithea/lib/celerylib/tasks.py
+++ b/kallithea/lib/celerylib/tasks.py
@@ -264,15 +264,14 @@ def send_email(recipients, subject, body
     email_prefix = email_config.get('email_prefix', '')
     if email_prefix:
         subject = "%s %s" % (email_prefix, subject)
-    if recipients is None:
+
+    if not recipients:
         # if recipients are not defined we send to email_config + all admins
         admins = [u.email for u in User.query()
                   .filter(User.admin == True).all()]
         recipients = [email_config.get('email_to')] + admins
-        log.warning("recipients not specified for '%s' - sending to admins %s", subject, ' '.join(recipients))
-    elif not recipients:
-        log.error("No recipients specified")
-        return False
+
+        log.warning("No recipients specified for '%s' - sending to admins %s", subject, ' '.join(recipients))
 
     mail_from = email_config.get('app_email_from', 'Kallithea')
     user = email_config.get('smtp_username')
diff --git a/kallithea/tests/other/test_mail.py b/kallithea/tests/other/test_mail.py
--- a/kallithea/tests/other/test_mail.py
+++ b/kallithea/tests/other/test_mail.py
@@ -44,3 +44,27 @@ class TestMail(BaseTestCase):
         self.assertIn('Subject: %s' % subject, smtplib_mock.lastmsg)
         self.assertIn(body, smtplib_mock.lastmsg)
         self.assertIn(html_body, smtplib_mock.lastmsg)
+
+    def test_send_mail_no_recipients(self):
+        mailserver = 'smtp.mailserver.org'
+        recipients = []
+        envelope_from = 'noreply@mailserver.org'
+        email_to = 'admin@mailserver.org'
+        subject = 'subject'
+        body = 'body'
+        html_body = 'html_body'
+
+        config_mock = {
+                'smtp_server': mailserver,
+                'app_email_from': envelope_from,
+                'email_to': email_to,
+        }
+        with mock.patch('kallithea.lib.celerylib.tasks.config', config_mock):
+            kallithea.lib.celerylib.tasks.send_email(recipients, subject, body, html_body)
+
+        self.assertSetEqual(smtplib_mock.lastdest, set([TEST_USER_ADMIN_EMAIL, email_to]))
+        self.assertEqual(smtplib_mock.lastsender, envelope_from)
+        self.assertIn('From: %s' % envelope_from, smtplib_mock.lastmsg)
+        self.assertIn('Subject: %s' % subject, smtplib_mock.lastmsg)
+        self.assertIn(body, smtplib_mock.lastmsg)
+        self.assertIn(html_body, smtplib_mock.lastmsg)