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