DNS PTR missing, arghh

Hello !
I have for several days and several hours trying to figure out how to set up a DNS
server for use with IIS and MailEnable. I have it up and running. DNS works fine,
mailaccounts work aswell. But im getting alot of unsent mail due to my PTR is not
working. I am sure that i missed something

The setup:

Windows Server 2003
MailEnable Enterprise Ed. 3.12 - Running all services - SMTP on port 25.
Microsoft SMTP - Running inbound on port 26.
Server ip out: 194.146.171.119
Domain: nalfnet.se

My primary nameserver is: ns1.nalfnet.se 194.146.171.119
My secondary ns is: edns05.ports.net 217.28.206.67

Mailenable SMTP connector has the following general settings:
Local Domain: nalfnet.se
Default mail domain: mail.nalfnet.se
DNS: 194.146.171.119 194.146.171.2 (the last one is external)

Microsoft SMTP has the following settings for "Advanced delivery":
Max jumps: 15
Masked domain: null
Fully Qual. Domainname: ns1.nalfnet.se
Smarthost: null
Do reverse DNS: unchecked


---------------

My dns zone files look like this:
; Database file nalfnet.se.dns for nalfnet.se zone.

@ IN SOA ns1.nalfnet.se. info.nalfnet.se. (
77 ; serial number
900 ; refresh
600 ; retry
86400 ; expire
3600 ) ; default TTL

@ NS edns05.ports.net.
edns05.ports.net. A 217.28.206.67
@ NS ns1.nalfnet.se.

@ MX 10 mail.nalfnet.se.
ns1 A 194.146.171.119
ftp CNAME ns1.nalfnet.se.
mail CNAME ns1.nalfnet.se.
www CNAME ns1.nalfnet.se.

---------------

And my reverse dns file like this:

; Database file 171.146.194.in-addr.arpa.dns for 171.146.194.in-addr.arpa zone.

@ IN SOA ns1.nalfnet.se. hostmaster.nalfnet.se. (
63 ; serial number
900 ; refresh
600 ; retry
86400 ; expire
3600 ) ; default TTL

@ NS ns1.nalfnet.se.
119 PTR ns1.nalfnet.se.

------------------

Like i said, the IIS works fine, Domain lookup seemes to work, most mail send and
comes in correctly to its mailbox in mailenable. But many gets stucks in:
C:\Inetpub\mailroot\Queue

The errors i get back is:
Reporting-MTA: dns;nalfnet.se
Received-From-MTA: dns;nalf.se
Arrival-Date: Thu, 27 Mar 2008 12:29:13 +0100

Final-Recipient: rfc822;mailadress@domain.se
Action: failed
Status: 5.7.1
Diagnostic-Code: smtp;554 5.7.1 PTR missing .

--------------------

Logbook has for every mail that is unsent an Event id: 4000
and sometimes id 2012, 2013.

--------------------


Testing my PTR gives me: WARNING: Reverse-DNS missing

DNS servers
edns05.ports.net [217.28.206.67]
ns1.nalfnet.se
Answer records
nalfnet.se 1 NS ns1.nalfnet.se 3600s
nalfnet.se 1 NS edns05.ports.net 3600s
nalfnet.se 1 SOA
server: ns1.nalfnet.se
email: xxxx
serial: 77
refresh: 900
retry: 600
expire: 86400
minimum ttl: 3600

nalfnet.se 1 MX
preference: 10
exchange: mail.nalfnet.se
3600s

Authority records

Additional records
ns1.nalfnet.se 1 A 194.146.171.119 3600s
----------


Hope i have gathered information that can be helpful.
I greatly appreciate any input and help from you!

Hugs

Sincerely
Nicklas Forsberg

PTR is your reverse DNS entry. Contact your ISP to set this up for you.