550-inconsistent or no DNS PTR record for ipv6

[Azurel]

Hi,

Today, I have found this error with sending mails to freenet:

host mx.freenet.de[2001:748:100:40::8:110] said:
550-inconsistent or no DNS PTR record for 2a01:XXX:67:1000:XXXX:518c:0:1
(see 550 RFC 1912 2.1) (in reply to RCPT TO command)

My hoster is "hosteurope" and in his RDNS setting is this:

Hostname: rs205XXX.rs.hosteurope.de
XX.XX.XX.XX: rs205XXX.rs.hosteurope.de
2a01:XXX:67:1000:XXX:518c:0:1: rs205XXX.rs.hosteurope.de

Each domain have this MX RECORD:

MX RECORD for domainA.com

10 mail.domainA.com.

MX RECORD for domainB.com

10 mail.domainB.com.

Is this not correct for mailer? Must I set in plesk anything too?

 

[IgorG]

But is this IP 2a01:XXX:67:1000:XXX:518c:0:1 correctly resolvable to corresponding hostname? Have you checked it?
Also there are other threads regarding the same issue with freenet:

http://forum.parallels.com/showthread.php?282520
http://forum.parallels.com/showthread.php?289884