diff --git a/addons/mail/i18n/mail.pot b/addons/mail/i18n/mail.pot
index 640a7f4c137..beb83dc09eb 100644
--- a/addons/mail/i18n/mail.pot
+++ b/addons/mail/i18n/mail.pot
@@ -2434,6 +2434,12 @@ msgstr ""
 msgid "Invalid email address"
 msgstr ""
 
+#. module: mail
+#: code:addons/mail/models/mail_blacklist.py:35
+#, python-format
+msgid "Invalid email address %r"
+msgstr ""
+
 #. module: mail
 #: code:addons/mail/models/mail_alias.py:88
 #, python-format
diff --git a/addons/mail/models/mail_blacklist.py b/addons/mail/models/mail_blacklist.py
index 0a49d2eb172..10df7379fa0 100644
--- a/addons/mail/models/mail_blacklist.py
+++ b/addons/mail/models/mail_blacklist.py
@@ -32,8 +32,7 @@ class MailBlackList(models.Model):
         for value in values:
             email = self._sanitize_email(value.get('email'))
             if not email:
-                _logger.warning('Blacklist: invalid email value %s' % value['email'])
-                continue
+                raise UserError(_('Invalid email address %r') % value['email'])
             if email in all_emails:
                 continue
             all_emails.append(email)