hy, i have an old version of postfix. i have this problem: from my server with sender [email protected] leave hundreds of spam messages to the Internet, I analyzed the file / var / log / maillog and I see this: BE80AB81E65 3272 Tue May 8 08:18:41 [email protected] (host smart-relay.mail.pippo.it[210.91.5.137] said: 451 DNS temporary error. (in reply to RCPT TO command)) [email protected] [email protected] [email protected] [email protected] [email protected]
how can I check who is the real user who generates envi spam? thanks
