Leave only valid email addresses.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@42490 20353a03-c40f-0410-a6d1-a30d3c3de9de

bt5/erp5_discussion/SkinTemplateItem/portal_skins/erp5_discussion/DiscussionThreadModule_createNewDiscussionThread.xml

@@ -111,6 +111,7 @@ New forum post has been created at this url:\n
 \n
 ${url}""" \n
   email_body = context.Base_translateString(email_template, mapping={\'url\':discussion_thread.absolute_url()})\n
+  email_list = filter(lambda x: x not in (None , \'\',) and \'@\' in x, email_list)\n
   for email_to in email_list:\n
     mail_headers = """\n
 To: %s\n

bt5/erp5_discussion/bt/revision

-79
+80
\ No newline at end of file