I'm confused with the IP ranges

[rekire]

I set up my network so far that I can recieve emails via IPv6.

Server IPv6 Address: 2001:470:abc2:666::1/64
Client IPv6 Address: 2001:470:abc2:666::2/64

Routed /64: 2001:470:abc3:666::/64

For the rDNS I'm using he.net.

There I set up the DNS for 2001:470:abc3:666::/64. But my server runs with the IP 2001:470:abc2:666::2 not with abc3! How can I setup a PTR entry for 2001:470:abc2:666::2 and not 2001:470:abc3:666::2?

I almost think that I made an error but I don't know what went wrong.

The ranges are modified but you should get the point.

[cholzhauer]

Please unblock your ip ranges, I have no idea what i'm reading

[rekire]

I updated my question. Now the IPs are valid even if I have other ranges. (I don't like to post public my ip address)

Edit:
Ah I got it. Like you told in "Professional LEVEL" problem: Your MX does not appear to have working RDNS I have to setup an IP from the second range in my case 2001:470:abc3:666::1

[broquea]

Since you didn't provide real IPs, I made certain rDNS was pushed out on both your tunnels.

[cholzhauer]

I updated my question. Now the IPs are valid even if I have other ranges. (I don't like to post public my ip address)

You could always use the 2001:db8::/32 documentation prefix too

[kasperd]

You could always use the 2001:db8::/32 documentation prefix too

That wouldn't help in this case since the problem was too little information in the post.

[cholzhauer]

You could always use the 2001:db8::/32 documentation prefix too

That wouldn't help in this case since the problem was too little information in the post.

Good point

[rekire]

I simply missed that the lower ip range is for routing only and not for client IPs and rDNS. Since I'm using the higher ip range everything works fine.