Invalid ptr/dns... listed in spamcannibal

Hello, i have a vps server in my business.  
Our email , today , is going out perfectly.   But somedays not.


We are listed in spammcanibal:

Click for WhoisIP: 86.109.167.171  ES      
       h0056.hostytec.com
       Spain
        spam source, anonymous/un-named IP
       see:
             86.109.167.10


Our server ip : 86.109.167.171
domain related about:  hotelalbayzindelmar.es

Our host in hosting has name: h0056.hostytec.com


When i try to remove our address from spamcannibal i get:

"
86.109.167.171 not eligible for removal: GENERIC PTR
h0056.hostytec.com
Why are you listed?
Fix these problems before asking for removal from our database.

Your host sends spam.
....
"

My dns configuracion for this domains are:
http://www.mxtoolbox.com/SuperTool.aspx?action=mx%3ahotelalbayzindelmar.es


SMTP test in mxtoolbox shows:

220 h0056.hostytec.com ESMTP
 OK - 86.109.167.171 resolves to h0056.hostytec.com
 OK - Reverse DNS matches SMTP Banner
 0 seconds - Good on Connection time
 Not an open relay.
 2.387 seconds - Good on Transaction time


Session Transcript:
HELO please-read-policy.mxtoolbox.com
250 h0056.hostytec.com [140 ms]
MAIL FROM: <supertool@mxtoolbox.com>
250 ok [1154 ms]
RCPT TO: <test@example.com>
553 sorry, that domain isn't in my list of allowed rcpthosts (#5.7.1) [140 ms]
QUIT
221 h0056.hostytec.com [140 ms]


All apears ok, i would like to be removed from spamcannibal to get less problems sending emails...

If someone can help me, I'll be very grateful.
I have plesk in my vps.

Javier
jarizaroAsked:
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jakethecatukCommented:
OK - I think I can see where things are going wrong here - it's all to do with using the hostnames that your hosting provider is using.  Anything in that IP range with the same DNS suffix is being grouped together.

The DNS for 86.109.167.171 and rDNS are point to the internal name for HOSTYTEC.COM.

What you need to do is as follows: -

1. create a DNS entry for your e-mail server that is specific to your domain - i.e. smtp.hotelalbayzindelmar.es with the IP address of 86.109.167.171.  You will also need to have  the rDNS entry created as well.
2. Update your e-mail server to send the DNS name smtp.hotelalbayzindelmar.es.

I think doing that should allow you to get your IP off the spam lists.
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jarizaroAuthor Commented:
Thanks jakethecatuk,

I think i have these entries ok in my dns config... a attach a screenshot about dns configuration for this domain..


dns-config.jpg
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jakethecatukCommented:
OK - you now need to get your hosting company to create the rDNS entry to complete everything.  Once that's been done and MXTOOLBOX is happy, then you can go back to spamcannibal to get yourself removed from their spam list.
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PapertripCommented:
Interesting I have never seen that type of spam block before.

Couple things to add -
Your SPF record has the mechanisms "a" and "mx", which both resolve to your IP.  Not only is that redundant, but it requires 3 additional DNS lookups per SPF check, which all resolve to the same thing :)

The best practice for your SPF record is
"v=spf1 ip4:86.109.167.171 ~all"

Open in new window

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jarizaroAuthor Commented:
Hello again, sorry by my delayed response.

jakethecatuk:
  Can i create that rdns entry in the upper table ?
  I'm using plesk on vps.

Papertrip:
 Thanks by your tip.  I'll try that later when i get move out from spamcannibal..
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jakethecatukCommented:
unlikley that you can create your own rDNS record.  that is normally completed by your ISP as they own that part of DNS.
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