Lima Union: [ Charset ISO-8859-1 unsupported, converting... ] > > Am 26.03.2013 19:36, schrieb Lima Union: > >>> > >> Wietse, ok, I'll disable the fqrdns check for now and check the chroot > >> configuration after I return from holidays > > > > this is ONE char in the master.cf and if i where you i > > would not make holidays as long a production server is > > known misconfigured > > > > ok, done, chroot has been disabled and the fqrdns.pcre is working now. > After disabling the chroot I issued an 'egrep > '(warning|error|fatal|panic):' /var/log/mail' and am seeing many > warnings like these, is it ok? > > Mar 26 15:56:03 relay1 postfix/smtpd[2111]: warning: 178.88.224.150: > hostname 178.88.224.150.megaline.telecom.kz verification failed: Name > or service not known > Mar 26 15:56:03 relay1 postfix/smtpd[1953]: warning: 201.216.208.5: > hostname customer-static-201-216-208.5.iplannetworks.net verification > failed: Name or service not known > Mar 26 15:56:18 relay1 postfix/smtpd[1951]: warning: 63.141.239.151: > hostname muv4ward.com verification failed: Name or service not known > Mar 26 15:56:31 relay1 postfix/smtpd[1951]: warning: 87.98.228.174: > address not listed for hostname www.thedesigninstitution.com > Mar 26 15:56:34 relay1 postfix/smtpd[2021]: warning: 64.191.105.74: > hostname 64-191-105-74.static.hostnoc.net verification failed: Name or > service not known
Yes, broken DNS happens. Instead of reject_unknown_client_hostname you could use reject_unknown_reverse_client_hostname which will use the name even if the above checks fail. http://www.postfix.org/postconf.5.html#reject_unknown_client_hostname http://www.postfix.org/postconf.5.html#reject_unknown_reverse_client_hostname Also, your chroot jail is missing files. Please complain to the distributor. Wietse