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Exchange Server 2003 and popcon

Hello Guys,

I have a domain controller (techlabtest.com)  (dc acts as dnd server) on win server 2003.  A member server on win 2003 where i have installed my exchange server 2003.  Internal mail works..Sending external mail to external sources works too..But i'm not able to receive mail from external sources.  
I have use popcon to download my mail as i dont have a fixed ip address. I got an error message on popcon. (please see attach screen shot).
I have noticed from a client computer when i ping mail.techlabtest.com, it can...But from my dc and my mailserver it can't (see attach screen shot)
Don't know if its a dns problem!!
Please help
popcon.rtf
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techlabtest
Asked:
techlabtest
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2 Solutions
 
Imtiaz HashamTechnical Director / IT ConsultantCommented:
Spot on: It's a DNS issue :)

I need more info about your setup.  What is your DNS address on your server's NIC and what is your networks' DNS TLD?
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Imtiaz HashamTechnical Director / IT ConsultantCommented:
Give us some screenshots please...

1. NSLOOKUP
2. DCDIAG
3. IP Settings on the DNS Server
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Alan HardistyCo-OwnerCommented:
The error in POPCON suggests that there are no local recipients - which is not a DNS issue.

You may have configured POPCON incorrectly, so we need to know more about the settings in POPCON before we can answer your problem and/or the mailboxes on your Exchange server.

Alan
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zackmccrackenCommented:
first of all , in your screendumps i see popcon is using the catchall account and thus filtering by domain but it also says you need to enter (somewhere) your own domain in the 'accepted domains' list. did you do this, since this info is missing in the screendumps

second:

http://www.servolutions.com/support/articles/nolocalrecipient.htm
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techlabtestAuthor Commented:
You are right zackm....i completely miss that one!! i put my domain name in accepted domain and it works...

Why i can't ping mail.techlabtest.com i.e 184.173.121.30
whereas i can ping 184.173.121.30
DNS PROBLEM?
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Alan HardistyCo-OwnerCommented:
Yes - that is a DNS problem.
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techlabtestAuthor Commented:
Any idea please how can i solve that..Plz give me the steps...

Thanks
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Alan HardistyCo-OwnerCommented:
If it is an internal name - you need to create a DNS zone called mail.techlabtest.com and add an A record to the zone pointing to IP 187.173.121.30.

If it is an external IP, then DNS should be resolving it happily, unless the name doesn't exist in which case you need to setup the name externally in DNS.

If the IP is your Public IP (current), then you might be better off signing up for a Dynamic DNS service (free), where you register a name such as techlabtest.dyndns.org and then every time your IP changes, a software application installed on a server / PC at your location will notice and update the Dynamic DNS record accordingly.
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techlabtestAuthor Commented:
Techlabtest (i have bought this domain name) is my domain name on my dc.. and 187.173.121.30 is an external ip (not my ip address)..i.e mail.techlabtest.com

When i do a tracert mail.techlabtest.com it ended to ns23.interactivedns.com [184.173.121.30.

I dont get this point...
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Alan HardistyCo-OwnerCommented:
Okay - I resolve it too.

What are the IP settings for your DC and Mailserver?

If you can run "ipconfig /all" on both machines and post the output please.

Alan
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techlabtestAuthor Commented:
Please see attach

Thanks
ipconfig.rtf
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Alan HardistyCo-OwnerCommented:
Okay - so your IP setup is fine, but your internal domain is the same as the domain you are trying to ping, so you just need to add an A record in the DNS on your server for MAIL and add the IP Address of you Mailserver and it should resolve and ping happily (unless you want it to resolve to the external IP in which case add the external IP address not internal IP Address)
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techlabtestAuthor Commented:
ok..im gonna try this tomorrow and will let you know...

Thanks
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techlabtestAuthor Commented:
alanhardisty...thanks for responding...have tried and can't ping mail.techlabtest.com

i dont know if i miss something..Can you please give me the steps how to configure dns for that, i mean the external ip..

Thanks
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techlabtestAuthor Commented:
Any help please....
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Alan HardistyCo-OwnerCommented:
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