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Not receiving email from external domains

ncma
ncma asked
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Last Modified: 2013-12-24
We are currently not receiving email from external sources.
Up until Tuesday it was working well. Since then the only thing that has changed is the IP address of our Netscreen firewall.
It used to have an internal address of 10.1.0.254/16 and was local in my server room. We changed recently to an MPLS solution and now the firewall is in our ISP's data centre with an address of 10.44.92.120/16.
The public facing IP is the same on the new firewall and the policies are a direct copy from the old firewall.
Is there somewhere in my exchange server to specify where email is received from on the internal LAN?
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Commented:
So, the netscreen has an other external IP adress too!
You should ask your domain registrant to change the MX record for your domain to the new external IP adress.

Author

Commented:
Sorry I was not clear . the external address has not changed so MX record stays the same
This one is on us!
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Sorry. I forgot to mention, that the telnet stuff should be done from the internet, that means
outside your firewall.

/Kent.

Author

Commented:
This is great.
It was not the relay settings though but the connection control settings
Thanks though because this sent me in the right direction
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