Blocked MTA-BLOCKED {TempFailedOpenRelay}

Hi Team
I found this error when I receive some emails.

 Blocked MTA-BLOCKED {TempFailedOpenRelay},

Jun  6 21:53:34 cwp amavis[15600]: (15600-17) Blocked MTA-BLOCKED {TempFailedOpenRelay},
Jun  6 21:53:34 cwp postfix/cleanup[21683]: 95A27241A74: milter-reject: END-OF-MESSAGE from localhost.localdomain[127.0.0.1]: 4.7.1 Service unavailable - try again later;
or

Jun  6 21:53:34 cwp postfix/smtp[21785]: 25E91241A75: to=<info@xxxxxxxxx.mx>, relay=127.0.0.1[127.0.0.1]:10024, delay=2.5, delays=0.09/0/0/2.4, dsn=4.7.1, status=deferred (host 127.0.0.1[127.0.0.1] said: 451 4.7.1 id=15600-17 - Temporary MTA failure on relaying, from MTA(smtp:[127.0.0.1]:10025): 451 4.7.1 Service unavailable - try again later (in reply to end of DATA command))


Someone has an idea about that error?

I will appreciate your help.

Rogelio

is Amavisd running?
Make sure Amavisd is running on target server and its listening on port 10025

post the output  - netstat -tulpn | grep 10025

Code: [Select]

[root@cwp ~]# netstat -tulpn | grep 10025
tcp        0      0 127.0.0.1:10025         0.0.0.0:*               LISTEN      29681/master

Yes Amavis is running, is rarely , because many emails is coming to this email server.
Only appears this error when I sent since other server., example, in the other server I have  two domains, 1 domain can send very well, second domain cant send emails this server.. appears this error.

any advice for that?

Did you try to restart amavis?

service amavisd restart

Yes, I restarted amavis and postfix more than 3 times, and still continue... only for some domains appears that error.

Please contact support for assistance

How can I contact them?

please contact them here  - http://centos-webpanel.com/support-services

so they can investigate and assist