id,summary,reporter,owner,description,type,status,priority,milestone,component,version,severity,resolution,keywords,cc 5273,"some registration emails fail in 2.3.1 b/c of ""callout verification""",camner,westi,"Registration emails sent to certain addresses where ""callout verification"" is enabled will fail. The following delivery failure notice will be generated: A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: t231@recipient_domain.com SMTP error from remote mail server after RCPT TO:: host recipient_domain.com [xxx.22.96.xxx]: 550-Verification failed for 550-Previous (cached) callout verification failure 550 Sender verify failed This was not an issue with WP 2.2, but occurs on an upgrade to 2.3.1, or a fresh 2.3.1 install with no plugins enabled and the default theme.",defect (bug),closed,normal,2.3.3,General,2.3.1,normal,fixed,registration emails,