I have a problem with outgoing emails not being accepted by gmail. My reverse DNS is configured and discovered using Google's dig tool: Code: id 2671 opcode QUERY rcode NOERROR flags QR RD RA ;QUESTION 191.5.65.82.in-addr.arpa. IN PTR ;ANSWER 191.5.65.82.in-addr.arpa. 21044 IN PTR serveur.marlotte.fr. ;AUTHORITY ;ADDITIONAL However, outgoing emails are still rejected by Gmail on what appears to be a reverse DNS problem: Code: <[email protected]>: host gmail-smtp-in.l.google.com[2a00:1450:400c:c00::1b] said: 550-5.7.25 [2a01:e0a:f03:8370:4eb5:172c:7122:fbe5] The IP address sending this 550-5.7.25 message does not have a PTR record setup, or the corresponding 550-5.7.25 forward DNS entry does not match the sending IP. As a policy, Gmail 550-5.7.25 does not accept messages from IPs with missing PTR records. For more 550-5.7.25 information, go to 550-5.7.25 https://support.google.com/a?p=sender-guidelines-ip 550-5.7.25 To learn more about Gmail requirements for bulk senders, visit 550 5.7.25 https://support.google.com/a?p=sender-guidelines. ffacd0b85a97d-3a35ca7fe24si12122765f8f.255 - gsmtp (in reply to end of DATA command) Please help !
the dig results you're getting are showing a PTR record for the servers ip4 address. it looks like the mail to google is going out on your servers ip6 address. you need to set a PTR record for the ip6 address as well.
Why would my server be sending from an IPv6 adrress ? I have never set it up for that !!! Is there anyway to get it to limit itself to the IPv4 address ? My ISP will not grant me 2 reverse DNS addresses... ;(
