mail host name in dns report

[hamper]

Mail server host name in greeting

WARNING: One or more of your mailservers is claiming to be a host other than what it really is (the SMTP greeting should be a 3-digit code, followed by a space or a dash, then the host name). If your mailserver sends out E-mail using this domain in its EHLO or HELO, your E-mail might get blocked by anti-spam software. This is also a technical violation of RFC821 4.3 (and RFC2821 4.3.1). Note that the hostname given in the SMTP greeting should have an A record pointing back to the same server. Note that this one test may use a cached DNS record.

ezwebsol.com claims to be host bucko.ezwebsol.com [but that host is at 208.xx.xxx.xxx (may be cached), not 208.xx.xxx.xxx].

The above is the warning I'm getting from DNS report. I've done a search online but can't seem to find a manual as to how to fix this problem. Can someone please point me in the right direction.

Thanks.

 

[docbreed]

The above is the warning I'm getting from DNS report. I've done a search online but can't seem to find a manual as to how to fix this problem. Can someone please point me in the right direction.

Thanks.

I've been searching for same support.. and I have the same report. If someone can help it would be appreciated.

Im running one nic - eth0 w/ 8 additional virtual ip's eth0:1 - 8

CPanel assigns the hostname to my main ip by default in /etc/hosts

# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1               localhost
1.0.10.100            server.domain.com server

"1.0.10.100 is my main ip eth0"
"1.2.25.105 is my v'ip eth0:5"
"customerdomain.com is hosted on 1.2.25.105"

Dns Reports

customerdomain.com claims to be host server.domain.com 
[but that host is at 1.0.10.100 , not 1.2.25.105]

Now my domains are bind to my virtual ip's from eth0:1 - eth0:8
Is it possible to edit the /etc/hosts file to look like this w/out it crashing?

# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1               localhost
1.0.10.100            server.domain.com server
1.2.25.101            eth1.domain.com eth1
1.2.25.102            eth2.domain.com eth2
1.2.25.103            eth3.domain.com eth3
1.2.25.104            eth4.domain.com eth4
1.2.25.105            eth5.domain.com eth5
1.2.25.106            eth6.domain.com eth6
1.2.25.107            eth7.domain.com eth7
1.2.25.108            eth8.domain.com eth8

And do you think this will draw back a good report from dns reports if i just added eth5.domain.com. to there mx record? I've already tested a few customer domains by adding server.domain.com to there mx record and it works fine. But I do not want my main ip to be vulnerable to anything, such as blacklists etc...

 

[zgambino]

Same Issue Here...

I have the same issue.
Has anyone figured out what to do?

I haven't seen a solution to this in the boards yet, so hopefully this post will bring some fresh attention to this issue.

It seems that my domains on dedicated IPs get flagged for spam more than others.

You can see the error yourself at http://www.dnsreport.com/tools/dnsreport.ch?domain=seocms.org

 

[nickp666]

the only way to avoid this warning is to use your servers primary ip for mail and the dedicated ip for everything else, AFAIK there is no way to make exim return different hostnames to different addresses

 

[docbreed]

I was able to do the above in the hosts file.. but like said above i have to use my main ip for Mail. Sucks.. just make sure your rules are strong.

 

[GoHard]

the only way to avoid this warning is to use your servers primary ip for mail and the dedicated ip for everything else, AFAIK there is no way to make exim return different hostnames to different addresses

Unfortinatly this is a false statement...

And it is what my dedicated host providers have informed me about
aswell.

But after countless hours of research I found that if you're using EXIM as your
MTA... then there is a way to do this.

For more information... Go here:
http://www.jaguarpc.com/forums/showthread.php?t=17391

Also, if you have a more than one hostname and would like a specific
hostname to show up in the greeting alone with your dedicated ip
address.

You can use the following info:
http://servertune.com/kbase/entry/209/

Lastly this has been mentioned here before:
http://forums.cpanel.net/showthread.php?t=65044


Joe