Am 21.12.2012 18:25, schrieb motty cruz: > Hello, > I have the following in my configuration but does not seem to make any > difference on the connection errors I see in > the logs > > smtpd_error_sleep_time=1h > smtpd_soft_error_limit=10 > smtpd_hard_error_limit=20 > > log: > Dec 21 09:22:53 mas postfix/smtpd[23941]: connect from unknown[186.81.31.93] > Dec 21 09:22:54 mas postfix/smtpd[23941]: NOQUEUE: reject: RCPT from > unknown[186.81.31.93]: 554 5.7.1 Client host > rejected: cannot find your hostname, [186.81.31.93]; from=<kg....@lincoln.com > <mailto:kg....@lincoln.com>> > to=<jason_grif...@sscsinc.com <mailto:jason_grif...@sscsinc.com>> proto=SMTP > helo=<lincoln.com <http://lincoln.com>> > Dec 21 09:22:54 mas postfix/smtpd[23941]: lost connection after RCPT from > unknown[186.81.31.93] > Dec 21 09:22:54 mas postfix/smtpd[23941]: disconnect from > unknown[186.81.31.93] > > it's been going for about an hour and it does not stop, any idea?
"cannot find your hostname" has nothing to do with the above settings you have "reject_unknown_reverse_client_hostname" in your config and the client-IP can not be resloved check your dns-resoltution on the server! weclome to the club - some minutes ago i restarted our barracuda-spamfirewall becasue it refused to reslove any hostnames in both directions, has in this case nothing to do with your probelm but broken DNS-resolution is the dead of e-mail
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