Re: hostname does not resolve to address warning

> postfix/smtpd[24986]: warning: hostname server17-ams1.internet-census.org > does not resolve to address 107.6.163.34: Name or service not known This is a type 4 error (the name->address mapping does not exist). > postfix/smtpd[24986]: connect from unknown[107.6.163.34] > postfix/smtpd[24986]: N

Re: hostname does not resolve to address warning

Thanks for the reply. The warning says that "hostname does not resolve to address" (case #4) but then the log says that connection is rejected because it cannot find a hostname (case #2). So which one is the actual rejection reason? Doesn't it feel a bit confusing? Regards

Re: hostname does not resolve to address warning

Eugene Podshivalov: > Hi all, > I have the following config > > > smtpd_client_restrictions = > > reject_unknown_client_hostname > > smtpd_helo_required = yes > > smtpd_helo_restrictions = > > reject_invalid_helo_hostname, > > reject_non_fqdn_helo_hostname, > > reject_unknown_helo_

hostname does not resolve to address warning

Hi all, I have the following config > smtpd_client_restrictions = > reject_unknown_client_hostname > smtpd_helo_required = yes > smtpd_helo_restrictions = > reject_invalid_helo_hostname, > reject_non_fqdn_helo_hostname, > reject_unknown_helo_hostname > smtpd_sender_restrictions = >