The reverse DNS og mail.gentoo.org,www.gentoo.org don't work. thym root # host mail.gentoo.org mail.gentoo.org has address 204.126.2.42 thym root # host 204.126.2.42 Host 42.2.126.204.in-addr.arpa not found: 2(SERVFAIL) All mail server that deny unknown produce this: Nov 23 15:07:59 curry postfix/smtpd[8933]: B1E40DB63: client=unknown[204.126.2.42] Nov 23 15:08:00 curry postfix/smtpd[8933]: reject: RCPT from unknown[204.126.2.42]: 450 Client host rejected: cannot find your hostname Please correct the "gentoo.org" domain.
fixed