I use reject_unknown_client_hostname at many email servers. Only this one is having a problem. Why DNS is bad if nslookup works fine?
2013/6/28 Wietse Venema <wie...@porcupine.org> > T?ssio Fechine: > > var/log/mail.log:Jun 28 18:25:43 rt-dq postfix/smtpd[4931]: NOQUEUE: > > reject: RCPT from unknown[209.85.219.66]: 450 4.7.1 Client host rejected: > > cannot find your hostname, [209.85.219.66]; from=<tess...@gmail.com> > to=< > > nti-ad...@quimica.ufpb.br> proto=ESMTP helo=<mail-oa0-f66.google.com> > > If you don't like that don't use reject_unknown_client_hostname. > > 66.219.85.209.in-addr.arpa domain name pointer mail-oa0-f66.google.com > . > mail-oa0-f66.google.com has address 209.85.219.66 > > Looks like you are using a bad DNS server. > > Wietse >
