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Associating PTR with FQDN instead of the Kimsufi ns...eu domain


tietavainen
06/12/2015, 15h57
We are trying to tweak things so we would get a perfect score for our mail server. https://www.mail-tester.com/ is giving this:
Your IP address 188.165.250.197 is associated with the domain ns390768.ip-188-165-250.eu.
Nevertheless your message appears to be sent from tietavainen.fi.

I have set up a secondary DNS in the Kimsufi control panel and added it to the OVH manager DNS records:

Code:
@	IN SOA dns106.ovh.net. tech.ovh.net. (2015120903 86400 3600 3600000 300)
                       IN NS     ns.kimsufi.com.
                       IN NS     ns106.ovh.net.
                       IN MX 5   tietavainen.fi.
                       IN A      188.165.250.197
                       IN AAAA   2001:41d0:2:c5c5::1
                       IN TXT    "v=spf1 a mx ptr -all"
*                      IN A      188.165.250.197
www                    IN CNAME  tietavainen.fi.
What should I try next?

Apparently Google & co would like to see an IPv6 PTR or they will punish incoming mails, but the OVH manager is not accepting the one I generated.

I tried:
1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.5.c.5.c.2.0.0.0.0. d.1.4.1.0.0.2.ip6.arpa. IN PTR tietavainen.fi.

And the error was:
Zone is not valid : line 13: ignoring out-of-zone data (1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.5.c.5.c.2.0.0.0.0 .d.1.4.1.0.0.2.ip6.arpa)

I used this to generate it: http://rdns6.com/hostRecord

Could it be that the PTR is generated somewhere in the OVH system where I cannot influence it?