IPv6 + PTR + gmail returning error

Question

I have a problem with mail connected to gmail account. Every time when i wanna send mail i got that error:

Our system has detected that this message does not meet IPv6 sending guidelines regarding PTR records and authentication

From server providoer i got IPv6 addreses: 2001:41D0:2:DFb7::/64

I add records to file piorkowski.pl.db:

piorkowski.pl.   IN   AAAA   2001:41D0:2:DFb7::1
1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.7.b.f.d.2.0.0.0.0.d.1.4.1.0.0.2.ip6.arpa. IN PTR piorkowski.pl.

And on server provider i add reverse for IPv6.

Command

dig AAAA piorkowski.pl +nocomments

return valid ip addres

the entire contents of piorkowski.pl.db:

$TTL 14400
@       IN      SOA     ns318558.ovh.net.      hostmaster.piorkowski.pl. (
                                                2014072700
                                               14400
                                                3600
                                                1209600
                                                86400 )

piorkowski.pl.   14400   IN   NS   ns318558.ovh.net.
piorkowski.pl.   14400   IN   NS   sdns2.ovh.net.

*.piorkowski.pl.   14400   IN   A   188.165.23.11
ftp   14400   IN   A   188.165.23.11
localhost   14400   IN   A   127.0.0.1
mail   14400   IN   A   188.165.23.11
piorkowski.pl.   14400   IN   A   188.165.23.11
pop   14400   IN   A   188.165.23.11
smtp   14400   IN   A   188.165.23.11
www   14400   IN   A   188.165.23.11
piorkowski.pl.   14400   IN   AAAA   2001:41D0:2:DFb7::1
1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.7.b.f.d.2.0.0.0.0.d.1.4.1.0.0.2.ip6.arpa. IN     PTR piorkowski.pl.
piorkowski.pl.   14400   IN   MX   10 mail



piorkowski.pl.   14400   IN   TXT   "v=spf1 a mx ip4:188.165.23.11 ~all"

localhost   14400   IN   AAAA   ::1

How stop quotes?

Your host `mail` does not have an IPv6 address set. This might be the cause of the problem. — Michael Hampton, Mar 19 '16 at 00:21

score 0 · Answer 1 · answered Apr 08 '16 at 20:45

Don't put PTR in the same file as A or AAAA.

It may seem that because you provided a fully qualified record, the bind would find it. But it won't; bind has no "map" of what to look in which file. It looks at a query from the client, then it looks in named.conf and based solely on named.conf entries it already knows how to serve the request: from which zone file (or forwarders, or recursive searching). If the query contain suffix piorkowski.pl it knows, based on named.conf, that it should respond with something it reads off piorkowski.pl.db file.

Similarly, you need to point in named.conf to the arpa domain that contains the PTR records. And ISP should obviously delegate the domain to your NS; there is no special PTR-type domain, domain is a domain and is normally delegated, whether it contains A records or PTR records.

IPv6 + PTR + gmail returning error

1 Answers1