Reverse DNS Mapping not working

[David Meier]

Now I am getting confused. We have 32 IP Addresses (195.141.214.32 up to 63) and I cannot do reverse mapping for my servers myself? Where do the other ISP's lookup for a reverse mapping then? You see, I need some enlightment on this.

Dave

> 
> In article <bikasp$uuk$1 at sf1.isc.org>, David Meier  
> <MEIER at logmail.net> wrote: Hi all,
>> 
>> I am a newbie to this and have the thankful task of administering 
>> an OpenVMS DNS server that had been set up years ago by some other 
>> person. Now we get more and more returned emails back with a 
>> following text: 
>> (reason: 550 5.7.1 <user at domain.com>... Fix reverse DNS for
>> 195.141.214.59 or use your ISPs mail server)
>> 
>> I am very unsure where to set the PTR records. I have found some 
>> PTR records in the file 214_141_195_in-addr_arpa.db. However they 
>> do not seem to work because mails do bounce from any of the server 
>> listed. Here's the files content:
> 
> You need to get your ISP to delegate the reverse DNS to you.
> 
> Note that if you haven't been assigned the entire 195.141.214.0/24 
> address block, you'll need to use the subnet delegation method 
> described in RFC 2317. 
> 
> -- 
> Barry Margolin, barry.margolin at level3.com
> Level(3), Woburn, MA
> *** DON'T SEND TECHNICAL QUESTIONS DIRECTLY TO ME, post them to 
> newsgroups. Please DON'T copy followups to me -- I'll assume it 
> wasn't posted to the group. 
>