rbl lookout problem - DNS records

M

Mike Lima

Verified User
Joined
May 6, 2015
Messages
13
I have sent an email to @icloud.com and the email returned with this message

host mx3.mail.icloud.com [17.158.8.61]: 550 5.7.0 Blocked - see https://support.proofpoint.com/dnsbl-lookup.cgi?ip=x.x.x.x:
We cannot identify the domain this IP belongs to.
You may need to update your DNS records.

How do I update my DNS records? What do I have to do on directAdmin and how do I do it?
 
Hello,

Just a guess, make sure you've got rDNS (PTR) record for your IP.
Code: 
nslookup IP

should give your hostname as an output, and
Code: 
nslookup hostname

should give your IP.

You should check it with your DC, or VPS provider on how to change rDNS records.
 
adding info:

I have tried this: http://help.directadmin.com/item.php?id=21

then I issue a dig -x x.x.x.x on terminal and obtained that

; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.30.rc1.el6_6.2 <<>> -x 95.211.205.78
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 13265
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;xa.xb.xc.xd.in-addr.arpa. IN PTR

;; AUTHORITY SECTION:
xc.xb.xa.in-addr.arpa. 70567 IN SOA ns0.myisp.nl. Postmaster.myISP.com. 2015060108 14400 7200 604800 86400

;; Query time: 26 msec
;; SERVER: A.B.C.D#53(85.17.150.123)
;; WHEN: Tue Jun 2 18:04:21 2015
;; MSG SIZE rcvd: 118
 
zEitEr said:
Hello,

Just a guess, make sure you've got rDNS (PTR) record for your IP.
Code: 
nslookup IP

should give your hostname as an output, and
Code: 
nslookup hostname

should give your IP.

You should check it with your DC, or VPS provider on how to change rDNS records.
Click to expand...


The answer to nslookup IP was

** server can't find x.x.x.x.in-addr.arpa.: NXDOMAIN
 
Your IP does not seem to have a PTR record. Follow instructions from my first reply.

Google's IP has:

Code: 
# dig -x 8.8.8.8

; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.30.rc1.el6_6.3 <<>> -x 8.8.8.8
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 40398
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0


;; QUESTION SECTION:
;8.8.8.8.in-addr.arpa.          IN      PTR


;; ANSWER SECTION:
8.8.8.8.in-addr.arpa.   23100   IN      PTR     google-public-dns-a.google.com.


;; Query time: 0 msec
;; SERVER: 2a01:7c8:b::c53#53(2a01:7c8:b::c53)
;; WHEN: Tue Jun  2 23:15:11 2015
;; MSG SIZE  rcvd: 82
 
Yes, I have. There no way to solve your issue on Directadmin side. If your VPS/Dedic server panel has no functionality to change PTR (rDNS), then you should open a ticket with them. There is nothing to add regarding the matter. ;)
 
zEitEr said:
Yes, I have. There no way to solve your issue on Directadmin side. If your VPS/Dedic server panel has no functionality to change PTR (rDNS), then you should open a ticket with them. There is nothing to add regarding the matter. ;)
Click to expand...

How can you know that? I have full root control over this server. My directadmin has the option add reverse dns. I added that and nothing changed.
 
I doubt you've got root access to ns0.myisp.nl and have directadmin installed on that server.
If you need more information please use Google or duckduckgo.com to find docs on how DNS works world-wide, and what is authoritative DNS.
 
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