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INTERNAL DNS ISSUE WITH WEBMAIL

By charding ·
I know this is a DNS issue but where the changes need to be made, I do not know. We have a Lotus Domino email server in which I have just configured for Domino Webmail. I can browse up the website a the following URL (example: mail.mycompany.com) from outside the network, however when I try to browse up the same URL internally (from inside the network) I have to use the IP address of the Domino server (example: 192.168.1.10). Rather than editing the lmhost file on each workstation, isn't there a setting on the DNS server that can be made to reflect the internal IP to name?

This has been plaguing me for awhile! Thanks in advance.

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by mgonzales In reply to INTERNAL DNS ISSUE WITH W ...

Maybe create an A record called mail and point it to the ip address of the mail server. Or user some other name and point the DNS record to that Lotus server.

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by Blackcurrant In reply to INTERNAL DNS ISSUE WITH W ...

Hi Charding

It sounds as though your clients are not configured to request DNS information from your Webmail server but are instead querying your local network DNS server (which services your internal network), therefore, any web addresses will not be resolved because they do reside on your internal network.

Is your Webmail server separate from your domain controller? If so, you need to do the following:

On each client machine you need to open the properties page for TCP/IP (Right-click local area connection and select properties, then click the TCP/IP entry and click the properties button).

In the default gateway enter the IP address of the webmail server. Next, in the prefered DNS server, enter the address of your DNS server (normally the same as the domain controller), and in the alternate DNS server enter the IP address of your webmail server.

Now when you try to resolve a web address the browser will query the first DNS server (local) in the list, fail, and then query the second DNS server (the webmail server) and succeed.

Hope this helps

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