Incoming email is not being delivered because it is using the wrong (old) IP address - how to change it

[Sunlander]

Hi,

I tried to move to a VPS from a Dedicated server a week or so ago. It turned out is wasn't compatible for hosting my sites as the was a max limit on storage and no way of upgrading once 800GB was reached.

So I cancelled the VPS but its totaly messed up the emailing. I have managed to get the outgoing mail working again but the incoming mail doesn't work.

When I used the Email troubleshooter in WHM Cpanel, it shows the VPS IP address. I have no idea where I change this back to the dedicated IP (it is an unmanaged dedicated server so support wont help me). I am looking to move to a managed one in the next month or so.

Can anyone advise how I reset the IP so it is no longer using the other server which no longer exists now?

Any help would be appreciated

 

[cPRex]

Hey there! I think I need some more details before I'll be able to provide advice. Could you post a screenshot of the Email Troubleshooter tool so we can see that output?

 

[quietFinn]

Let's say you have domain yourdomain.com in your server, and there is an email address name like [email protected].
When email is sent to that address, the sending server is checking the MX record of domain yourdomain.com. So MX record tells address of the destination server.

 

[Sunlander]

Hi,

attached is a scfreenshot of the mail troubleshooter for one of our emails. The mx is pointing to the wrong IP. If I look under DNS email routing configuration it has the correct domain name in the lowest priority.

 

[cPRex]

What happens if you run a basic "dig mx yourdomain.com" from outside the server? Does that return the correct value?

 

[Sunlander]

Hi,

it comes back with this:

; <<>> DiG 9.11.4-P2-RedHat-9.11.4-26.P2.el7_9.15 <<>> mx mysite.co.uk
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 40921
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
;; QUESTION SECTION:
;mysite.co.uk. IN MX

;; ANSWER SECTION:
mysite.co.uk. 3600 IN MX 10 mail.mysite.co.uk.

;; Query time: 30 msec
;; SERVER: 213.186.33.99#53(213.186.33.99)
;; WHEN: Sat Nov 25 10:43:47 GMT 2023
;; MSG SIZE rcvd: 64

This is totaly different to my server address. Could that be the problem?

 

[quietFinn]

This is totaly different to my server address. Could that be the problem?

It is the problem.

 

[Sunlander]

Would you know how I fix it?

 

[quietFinn]

Check your DNS for example in:

intoDNS: checks DNS and mail servers health

intoDNS checks the health and configuration of DNS and mail servers.

www.intodns.com