DNS MX Problem

External Since: Nov 24, 2007 Posts: 1

Hi Everyone:

Our company had a static IP address from our ISP. However, late one night,
our ISP did some sort of server upgrade and every one came into work and had
no internet. Called the ISP tech support and they confirmed their upgrade and
told us to change static settings on the router to DHCP which we did. We
unfortunately obtained all new IP information despite supposedly having a
static IP. Anyway, we now had internet again, but of course cannot receive
email because no one can now find our Exchange server. We logged into DNS
manager at our registrar and changed the appropriate records to reflect the
new IP. Our ISP confirms that our zone file is correct. However, it has now
been over 40 hours and our mail server is not being resolved correctly.
Our domain is canadaici-van.com
Our mail server is mail.canadaici-van.com
Our domain is currently showing no MX records for our domain and is
presently being incorrectly resolved to 208.67.219.145. Our new IP is
209.121.x.x number.
The ISP which is also the registrar has no ideas why it is not working.
Everything is functioning within our network and our server. I can remotely
connect to the router via the new IP address. I can access OWA via the new IP
address.
Can anyone see anything that I missing?
Thanks so much,

Mike

External Since: Sep 06, 2007 Posts: 4

Hello Mike,

If i ping your domain and mail server name i got this as an answer:

ping mail.canadaici-van.com

Pinging mail.canadaici-van.com [216.251.32.97] with 32 bytes of data:

Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 216.251.32.97:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

ping canadaici-van.com

Pinging canadaici-van.com [216.251.43.11] with 32 bytes of data:

Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 216.251.43.11:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

So the ip addresses you are talking about are not used.

Also nslookup to your domain and mail server name give the same result:
> nslookup canadaici-van.com
Server: canadaici-van.com
Address: 216.251.43.11

DNS request timed out.
timeout was 2 seconds.
*** Request to canadaici-van.com timed-out
> nslookup mail.canadaici-van.com
Server: mail.canadaici-van.com
Address: 216.251.32.97

DNS request timed out.
timeout was 2 seconds.
*** Request to mail.canadaici-van.com timed-out

Best regards

Meinolf Weber
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> Hi Everyone:
>
> Our company had a static IP address from our ISP. However, late one
> night,
> our ISP did some sort of server upgrade and every one came into work
> and had
> no internet. Called the ISP tech support and they confirmed their
> upgrade and
> told us to change static settings on the router to DHCP which we did.
> We
> unfortunately obtained all new IP information despite supposedly
> having a
> static IP. Anyway, we now had internet again, but of course cannot
> receive
> email because no one can now find our Exchange server. We logged into
> DNS
> manager at our registrar and changed the appropriate records to
> reflect the
> new IP. Our ISP confirms that our zone file is correct. However, it
> has now
> been over 40 hours and our mail server is not being resolved
> correctly.
> Our domain is canadaici-van.com
> Our mail server is mail.canadaici-van.com
> Our domain is currently showing no MX records for our domain and is
> presently being incorrectly resolved to 208.67.219.145. Our new IP is
> 209.121.x.x number.
> The ISP which is also the registrar has no ideas why it is not
> working.
> Everything is functioning within our network and our server. I can
> remotely
> connect to the router via the new IP address. I can access OWA via the
> new IP
> address.
> Can anyone see anything that I missing?
> Thanks so much,
> Mike
>