E-mail returns; Client host rejected: cannot find your hostname

[janton]

Dear All,

I keep on having troubles but ofcourse because i'm also learning on the way... it seems i have something not setup correct, or missing because when some email systems return my email with the following information:


554 5.7.1 Client host rejected: cannot find your hostname [*MY.IP.HERE.YES]
*i replaced my ip for this post.


Also when i run a test for my nameserver i get a warning:
Reverse for MY.IP.HERE.YES points to unknown hostname (vps1.domain.nl).

I found this directadmin help: How to add reverse IP Lookup on your IP's
http://help.directadmin.com/item.php?id=21


I did not do this yet, because i don't know if I need to do this?
----------------------------->
Admin Level -> DNS Administration

Scroll to the bottom to the "Add Zone" section.

Enter your information normally:

domain name: server.hostname.com
ip: 1.2.3.4
ns1: ns1.hostname.com
ns2: ns2.hostname.com
Click the "Create Reverse IP Lookup" checkbox, then click "Add".
----------------------------->

I did not do this yet, because i somehow thing i already did this. (a long time ago) but i don't know for sure... but when i run:

dig -x MY.IP.HERE.YES
i see in the answer section my vps1.domain.nl.

 

[janton]

Should i also have some sort of A record for my hostname (vps1.domain.nl)?

 

[janton]

Ok i think i did not yet created that reverse DNS now lets wait a few hours to check if it worked!

 

[zEitEr]

Should i also have some sort of A record for my hostname (vps1.domain.nl)?

Yes, that's a must, I'd rather say, if it's not done yet.

As for reverse IP Lookup, you should update the PTR records for IP at your provider, so ask him, there is no other way to do it, unless you've got your own /24 IP sub-net.

 

[janton]

Thx for the quick respons.. only i don't fully understand:

The A record i have to create, how should it look? something like this:
vps1.domain.nl. A MY.MAIN.IP ???



Then you say i need to ask my provider "update the PTR records for IP"
but when i do a dig -x MY.IP.HERE.YES
i see in the answer section my vps1.domain.nl.
So my guess is this is already correct?

 

[zEitEr]

The A record i have to create, how should it look? something like this:
vps1.domain.nl. A MY.MAIN.IP ???

Yes, that's right.

i see in the answer section my vps1.domain.nl.
So my guess is this is already correct?

I don't know how accurate you do that. It does not mean much if it's correct locally only, it should be correct world wide, you might want to check it for example here http://swhois.net/ with nslookup (enter your MY.IP.HERE.YES there)