Hi all, This problem regards a RH9 box I have had setup running a Shupp Toaster solidly for over 12 months. I have barely touched it in the last 6; system resources are fine and everything has been OK. Until last Friday, when people sending mail to my server started receiving something like this:
(log entries from remote host, sending TO my server): 2007-03-07 00:56:15.625834500 status: local 0/10 remote 0/20 2007-03-07 00:59:35.128206500 new msg 261221 2007-03-07 00:59:35.128225500 info msg 261221: bytes 434 from <[EMAIL PROTECTED]> qp 27683 uid 89 2007-03-07 00:59:35.347555500 starting delivery 30048: msg 261221 to remote [EMAIL PROTECTED] 2007-03-07 00:59:35.347571500 status: local 0/10 remote 1/20 2007-03-07 00:59:36.622510500 delivery 30048: deferral: 202.173.137.34_failed_after_I_sent_the_message./Remote_host_said:_451_mail_server_temporarily_rejected_message_(#4.3.0)/ 2007-03-07 00:59:36.622527500 status: local 0/10 remote 0/20 2007-03-07 00:59:41.023791500 new msg 261327 2007-03-07 00:59:41.023809500 info msg 261327: bytes 434 from <[EMAIL PROTECTED]> qp 27689 uid 89 2007-03-07 00:59:41.207978500 starting delivery 30049: msg 261327 to remote [EMAIL PROTECTED] 2007-03-07 00:59:41.207997500 status: local 0/10 remote 1/20 2007-03-07 00:59:42.484134500 delivery 30049: deferral: 202.173.137.34_failed_after_I_sent_the_message./Remote_host_said:_451_mail_server_temporarily_rejected_message_(#4.3.0)/ 2007-03-07 00:59:42.484154500 status: local 0/10 remote 0/20 All I can find in reference to an error 451 are mentions of SPF errors, and I have not changed my SPF configuration. I have however experimented by disabling SPF (echo 1 > /var/qmail/control/spfbehaviour ; qmailctl restart) and (echo 0 > /var/qmail/control/spfbehaviour ; qmailctl restart) however neither made any difference. I've done all the obvious things, checked & repaired mysql databases, queried my domains with the qmail & vpopmail tools to make sure everything is working there. But not change; my mail server is simply rejecting everything not sent from one of my hosted domains. Sounds like greylisting; but I haven't made any configuration changes. I'm stuck... Can anyone help? Many thanks, David
