You have to ask your ISP for reverse DNS for your IP.
Only the ISP can set it, this thread regarding rdns getting rather old.

Du må får din internett leverandør til å sette opp RDNS for din IP
adresse.
Kun internett leverandøren din kan sette opp rdns.

Best Regards/Mvh
Ole


> I've set the MX record to jforce.no
>
> d1200-075:~ kjetil$ host jforce.no
> jforce.no has address 84.234.141.2
> jforce.no mail is handled by 0 jforce.no.
>
> You say I have a valid rDNS? still I'm getting "<dvfilsrv.dv.local
> #4.0.0 smtp;421 Refused. You have no reverse DNS entry.>" from several
> people trying to send mail to my domains...
>
> I'm also getting this from the MXtoolbox when doing smtp:84.234.141.2
> Not an open relay.
> 0 seconds - Good on Connection time
> 1.919 seconds - Good on Transaction time
> OK - 84.234.141.2 resolves to
> Warning - Reverse DNS does not match SMTP Banner
>
> Last one is only a warning, could maybe be solved by putting
> 2.84-234-141.customer.lyse.net in my banner?
>
> thx
> Kjetil
>
>
> On Wed, Dec 2, 2009 at 5:54 PM, Eric Shubert <e...@shubes.net> wrote:
>> Jake Vickers wrote:
>>
>> You have a static address, and there is a valid rDNS entry for it:
>> shu...@edwin:~$ host blue.jforce.no
>> blue.jforce.no has address 84.234.141.2
>> shu...@edwin:~$ host 84.234.141.2
>> 2.141.234.84.in-addr.arpa domain name pointer
>> 2.84-234-141.customer.lyse.net.
>> shu...@edwin:~$
>>
>> I don't see an MX record for your domain though. Is that your problem?
>>
>> --
>> -Eric 'shubes'
>>
>>
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>
>
>
> --
> /**
>  kjetil
>  */
> ---------------------------------------------------------
> Kjetil Paulsen
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> http://gofaster.no
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