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one exchange server with 2 public Ips

Posted on 2010-11-12
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Hi, I have a exchange server 2003 that in the moment it have an public IP, but these ISP sometimes have problems with the connection to the outside, so my idea is to have another public IP linked to these server, I would put another link on the firewall and there it would have 2 public IP's linked to the same exchange server. So now I would like to know if it is possible?

I was thinking also to use the Dyndns services with the round robin service.

Regards
Joel Pessoa
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Question by:brithol
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by:MegaNuk3
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Yep you can do it and put in another MX record in your DNS that points to a new A record that points to your 2nd IP address and then set the priority of that mx record slightly higher so it only be used if the first one is down
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by:brithol
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MegaNuk3,, these solution is to receive emails on the same server with 2 different Public IPs, If my server uses the 2 Public IPs to send, is not a problem?

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MegaNuk3 earned 500 total points
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The only problem you will have is that mail might get a higher spam rating if the smtp header does not match the reverse dns lookup on the sending IP address

So you could implement dns round Robin for that name and get the ISP to update the reverse DNS record for the second IP address to point to the round Robin name.
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