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Old 02-19-2004, 12:06 AM
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Join Date: Feb 2004
Posts: 11
Default Two mail servers behind firewall cant e-mail other
I have two e-mail servers that work great behind the firewall but Ive found that I cant e-mail one domiain on one box to another domian on the other. I also cant bring up websites that are hosted behind the firewall from a browser behind the firewall. Any help would be great!! [img]/images/graemlins/crazy.gif[/img]
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Old 02-19-2004, 07:32 AM
Simon Shaw's Avatar
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Location: Perth, Western Australia
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Default Re: Two mail servers behind firewall cant e-mail other
Some more info on your network setup would be good.

ie where are the servers located ? On your internal LAN or on a DMZ hanging off the firewall..
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Old 02-19-2004, 03:13 PM
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Default Re: Two mail servers behind firewall cant e-mail other
I have a 2 NIC setup with all of my servers behind the internal interface and using NAT to bridge them to the out side interface.
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Old 02-19-2004, 11:03 PM
Wizard
  
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Default Re: Two mail servers behind firewall cant e-mail other
Can they ping each other?
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Old 02-20-2004, 04:47 AM
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Default Re: Two mail servers behind firewall cant e-mail other
Are they using the ASL as a smarhost? Do you have internal MX records set up?
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Old 02-20-2004, 06:49 AM
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Default Re: Two mail servers behind firewall cant e-mail other
They can ping easch other on thier internal IPs. Im not sure what a smart host is and I dont have MX records that are for the internal range (should I?) Im also having trouble with viewing webpages on a webserver behind the firewall but I can see the website from no problem from a outside machine.
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Old 02-20-2004, 12:30 PM
Simon Shaw's Avatar
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Default Re: Two mail servers behind firewall cant e-mail other
Have you read the "Getting Started" guide ? It gives you a good rundown.
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Old 02-20-2004, 03:40 PM
Wizard
  
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Location: U.S.
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Default Re: Two mail servers behind firewall cant e-mail other
If your mail servers are relying on DNS, and you are using private network numbering, sounds like a DNS issue. See Re: Configuring Exchange server in the DMZ behind ASL

If that's not what it is, repost...
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