Hello,
I was wondering if anyone could point me in the right direction with a problem I am facing with our new Exchange 2007 set up?
Currently, the server has 2 NIC's - one connects through our router and onto our ISP's network with a static IP address assigned to us by our ISP, making it visible on the internet. The other has a private static IP address that we have assigned that makes the server accessible internally for our client computers.
This all seems to work fine for receiving messages and logging into Exchange either internally or externally of our building.
However, when trying to send external-bound messages, we are getting 'Relay Access Denied' messages. After looking into this a bit deeper, it seems that it is trying to send messages out using the Internal NIC rather that the External, which is obviously not possible. Messages sent internally all work fine.
Is there a way of telling Exchange to send messages that are not destined for adresses within our domain through the external NIC?
I hope I have expained this clearly??
Thanks for any help anyone can give me with this....
Mark.
Mark,
There is a way to do this, you would want to create a seperate SMTP connector for each IP address and then give each one a seperate address space.
Most security "experts" will tell you its not a good idea to bridge two networks with a non-firewall device. Is it possible to drop down to just the internal NIC and then publish or allow access to that NIC through the firewall?
Microsoft suggests using ISA for service publishing, but this can be done with most firewall and SOHO routers.
- Joel
Hi,
Thanks for your reply.
I realise it is not an ideal setup, but if there is a way to get it working temporarily, I can then look at a better solution later.
Will look into the extra connector - thanks again....
You may also want to look at this thread because the more I thought about it this might have something to do with your problems too.
http://exchangeexchange.com/forums/t/604.aspx