RE: ] RE: inbound Exchange Mail Problem
- From: "Thomas W Shinder" <tshinder@xxxxxxxxxxxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Thu, 2 Jan 2003 12:18:17 -0600
Hey guys,
You usually can't run an real split DNS with TZO, because you're using
dynamic addresses and you can't manage those addresses yourself, you
must use the TZO servers.
HTH,
Tom
Thomas W Shinder
www.isaserver.org/shinder <http://www.isaserver.org/shinder>
http://tinyurl.com/1jq1 <http://tinyurl.com/1jq1>
http://tinyurl.com/1llp <http://tinyurl.com/1llp>
-----Original Message-----
From: John Tolmachoff [mailto:isalist@xxxxxxxxxxxx]
Sent: Thursday, January 02, 2003 11:26 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: ] RE: inbound Exchange Mail Problem
http://www.ISAserver.org
OK, please do not be offended at my responses as they may tend
to be harsh.
You need to learn about DNS and hosting e-mail services. DNS is
extremely critical and is easily broken.
In the forwarders list in your DNS server properties, you need
to have your ISP DNS servers there, and nothing else. Forwards are for
if your DNS server can not resolve a request, it forwards the request
some one else.
You have trouble receiving from the Internet because the public
DNS record only has one MX record, and that is pointed at your ISP
server saf.tzo.com. Unless you configure Exchange to retrieve your mail
from there if that server is set up to receive your mail, you will never
get it. I was able to send 2 test messages through that server, so it is
accepting mail.
You might want to review this:
http://www.dnsreport.com/tools/dnsreport.ch?domain=jedgroup.com
You have the cable modem then the Linksys router then ISA. Loose
the Linksys. Why do you need it?
John Tolmachoff MCSE, CSSA
IT Manager, Network Engineer
211 E. Imperial Hwy, Suite 106
Fullerton, CA 92835
562-694-4800, ext. 104
jtolmachoff@xxxxxxxxxxxxxxxx
www.reliancesoft.com <http://www.reliancesoft.com/>
-----Original Message-----
From: Elliott Davidow [mailto:Elliott.Davidow@xxxxxxxxxxxx]
Sent: Thursday, January 02, 2003 9:02 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] ] RE: inbound Exchange Mail Problem
http://www.ISAserver.org
Dear John,
Since I we have just an SBS2000, we have only one DNS server,
also located on the same machine is the AD, Exchange, SQL, ISA, etc.
> You say you have split DNS. What is you external DNS
server and what is the MX record on it? The only public MX record
showing
up is saf.tzo.com. All external e-mail will go to that
server only. Also, there is only one host record (A) which resolves
jedgroup.com.
In our forward zone, we named jedgroup.com to the
internal address (one adapter) and www.jedgroup.com to the external
address, the 2nd adapter.
> Are you having problems receiving e-mail sent from
internal, Internet or both?
We have trouble only receiving from the Internet. The
Internal works fine.
> You mentioned 3 different pieces of hardware, what
are they for? (Gateway, Internet cable and Linksys router.) Can you
please explain your network setup.
From the Cable Modem:
to the Linksys router
to the first (www.jedgroup.com) adapter on the SBS2000
Server
then the internal network adapter to the switch then to
the workstations.
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