Strange Problem with Email after migration

ace2109

ace2109

ace2109

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Joined
28 Dec 2002
Posts
2,400
Location
Northern Ireland
Hi Guys,
I recently migrated a website onto our dedicated server. This website hosts their own email in house so I simply copied the DNS settings for this Domain from the previous host to our new server. Previous transfers have went smoothly with no problems but this domain can't seem to send and receive emails correctly.

It can send and receive to most other domains however their mail will drop out periodically and won't receive or send emails to a specific domain.

I have posted below the old and new settings and was wondering if you can see anything wrong.

OLD HOST SETTINGS


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NEW DEDICATED SERVER SETTINGS


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Ok so I might have found the solution or another problem, im not sure.

Our dedicated server has 2 name servers which we setup, however these name servers dont have any MX records associated with it? Could this be the problem? What would the MX records need to be?
 
Im guessing not, I have just inherited this problem.

What should these records be? All hosting and mail are done from the same server, i have checked and this is the what is setup under the advanced DNS setting for the domains

ns1 and ns2 have separate A records pointing towards the servers IP address which I believe is correct.

There are no other records at all

Im guessing the MX records for the name servers should point to the server IP as well as this is where the email is hosted?

Not 100% sure about this so any help is much appreciated.
 
NS1 and NS2 are the same server, this hosts both mail and websites, all DNS Settings for each domain are setup within the PLESK control panel for the server.

There is no problem with other domains on the server, I have 3 that point towards googles mail servers and we host the mail for another 6 locally on the server, its literally just this one domain that the email doesnt work with.
 
If you have a look at this http://www.intodns.com/bnlproductions.co.uk

and this together http://www.intodns.com/niyf.org

On the bnlproductions.co.uk report you will see no serious errors however on the niyf.org domain there are however they are on the same server and were setup the same way with the only exception being their MX records are different.

I dont understand why on one it says the name servers are fine and yet the other it says there not?

The client hosts their own mail on a Windows Business Server box and can access it via webmail and through outlook
 
I did a complete DNS reset on the domain and set it back up but still no luck.

Thanks for your support guys, i will post back with my progress
 
Hi Guys,
Thanks for the support on this, I have been wrecking my head about it all day.

I have now removed the second MX record as it would seem it has nothing to do with their actual exchange server.

intends does seem to be a lot happier today however they are still experiencing the same issues in that they can't receive or send mail from hotmail and they can't receive mail from bnlproductions.co.uk but yet they can send mail to this domain.

I did get an error report this morning from them saying that some users were not recognized and they thought it was our fault however I explained that all we do is redirect their mail, we don't actually host it for them.

I have contacted the company thats hosts their mail and explained the problems and their engineer is looking into it.

I honestly can't see any problems with the DNS settings, from what I can see it should work perfectly but its not for some reason.

Any other suggestions would be greatly appreciated.
 
I think they have 7 users in total. We actually dont host their mail, this is done by another company so I can get access to the exchange server itself to diagnose any problems.

If it was up to me I would be simply hosting it on our server but I dont believe this is an option unfortunately.
 
So after some further testing, I have found that a small amount of users on the bnlproductions.co.uk domain can email some users on the niyf domain but not all.

Would SPF records and/or domain keys have an effect on this?
 
Eulogy, you have got it right with the top comment.

Consistency is with certain users in-fact only one can send and receive from their bnlproductions account.

The messages are not queuing on our side.
 
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