Hi, I know maybe this is not related to DNS question, so please excuse me if it's not that suitable.
I have two server IPs, the A records for them are: mail.dnsbed.com. 300 IN A 74.117.233.4 mail.dnsbed.com. 300 IN A 74.117.232.204 The corresponding PTR records are: 4.233.117.74.in-addr.arpa. 36466 IN PTR dnsbed.com. 204.232.117.74.in-addr.arpa. 36453 IN PTR dnsbed.com. But this setting can't make email sending successful. The Postfix system says: postfix/smtp[13775]: A65713180D9: to=<***@freenet.de>, relay=mx.freenet.de[195.4.92.211]:25, delay=1.2, delays=0.29/0.02/0.76/0.16, dsn=5.0.0, status=bounced (host mx.freenet.de[195.4.92.211] said: 550 inconsistent or no DNS PTR record for 74.117.233.4 (see RFC 1912 2.1) (in reply to RCPT TO command)) Is there any RFC item said the A and PTR records must be consistent? And why they must? Thanks. _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
