Fix #1905 : No email sent to second email address in Notifications plugin

deluge/plugins/Notifications/deluge/plugins/notifications/core.py

@@ -114,7 +114,8 @@ class CoreNotifications(CustomNotifications):
 
     def _notify_email(self, subject='', message=''):
         log.debug("Email prepared")
-        to_addrs = '; '.join(self.config['smtp_recipients'])
+        to_addrs = self.config['smtp_recipients']
+        to_addrs_str = ', '.join(self.config['smtp_recipients'])
         headers = """\
 From: %(smtp_from)s
 To: %(smtp_recipients)s
@@ -124,7 +125,7 @@ Date: %(date)s
 
 """ % {'smtp_from': self.config['smtp_from'],
        'subject': subject,
-       'smtp_recipients': to_addrs,
+       'smtp_recipients': to_addrs_str
        'date': formatdate()
       }