On 4/29/2015 3:21 PM, James B. Byrne wrote: > I am seeing these in my maillog: > > /var/log/maillog > > Apr 29 15:17:15 inet08 postfix-p25/smtpd[18108]: NOQUEUE: reject: RCPT > from unknown[95.62.201.133]: 450 4.7.1 > <static-133-201-62-95.ipcom.comunitel.net>: Helo command rejected: > Host not found; from=<> to=<owner-pac...@halisp.net> proto=SMTP > helo=<static-133-201-62-95.ipcom.comunitel.net>
This is from reject_unknown_helo_hostname. The host given in the client's HELO command, static-133-201-62-95.ipcom.comunitel.net, does not exist. > > > And these in my dns query log: > > /var/log/dnsquery.log > > static-133-201-62-95.ipcom.comunitel.net > static-133-201-62-95.ipcom.comunitel.net.hamilton.harte-lyne.ca > static-133-201-62-95.ipcom.comunitel.net.harte-lyne.ca > static-133-201-62-95.ipcom.comunitel.net.mississauga.harte-lyne.ca > > > I would like to confirm that the last three oddball dns lookups are > somehow related to postfix's sender restrictions that I have > configured, reproduced herein: There is no sender. > > smtpd_sender_restrictions = > permit_mynetworks, > check_sender_access hash:/etc/postfix/sender_access, > check_sender_mx_access hash:/etc/postfix/sender_mx_access, > check_sender_ns_access hash:/etc/postfix/sender_ns_access, > permit_sasl_authenticated, > reject_non_fqdn_sender, > reject_unknown_sender_domain, > permit > > And if so then I would appreciate having the exact process explained > to me as well. I can guess at what is going on but I would prefer > certain knowledge if available. > > /etc/resolv.conf > . . . > search harte-lyne.ca hamilton.harte-lyne.ca mississauga.harte-lyne.ca > > > And if not then can anyone suggest to what is happening? Have I > misconfigured something? Looks as if your resolver is appending the search path to unknown domains. -- Noel Jones
