mail.precitec.cn Mail delivery failed : returning message to sender

From: Mailer-Daemon@mail.precitec.cn
Domain: IP info mail.precitec.cn
MX-server: IP info mail.precitec.cn
Size: 441 Bytes
Create: 2025-01-28
Update: 2025-01-28
Score: 0
Safe: Yes

This message was created automatically by the SMTP relay on mail.precitec.cn. A message that you sent could not be delivered to all of its recipients. The following address(es) failed: jj.pei@precitec.cn host 192.168.0.106 [192.168.0.106] SMTP error from remote mail server after end of data: 554 5.4.12 SMTP; Hop count exceeded - possible mail loop detected on message id