- Edited
Hi.Since upgrading to 1.9.9, emails are being rejected: pipe to |/home/example/public_html/support/api/pipe.php generated by support@example.comThe following text was generated during the delivery attempt:------ pipe to |/home/example/public_html/support/api/pipe.php generated by support@example.com ------/usr/sbin/sendmail: unexpected response 501 to RCPT TO command/usr/sbin/sendmail: unexpected response 503 to DATA command