Len, I am retesting al this and sending you a reponse in a few minutes. thanks.

-----Original Message-----
From: Len Conrad [mailto:[EMAIL PROTECTED]
Sent: Friday, July 04, 2003 12:10 PM
To: [EMAIL PROTECTED]
Subject: RE: [IMail Forum] Exchange 2k and Imail



>a split DNS setup.

What DNS software?  ( but this is so easy to fix with hosts file)

>My internal DNS has entries for the host names/ internalf IP's of each of 
>the mail servers.

windows resolves via hosts and then DNS (Unix does, too).  I never seen 
this fail and everybody uses it all the time to short-circuit DNS resolution.

Anyway, you didn't answer my question about what happens when you ping, 
traceroute, telnet:25 from each machine to the other's IP (not its hostname).

>  However, no other entries for those machines. What should my internal 
> DNS look like in order to resolve my two external mx/A records.

If you use DNS to resolve, it's stupid simple.  You set up the MX records 
for each domain to point to MX hostnames, and then put in A records in each 
exchange or imail zone:

in the exdomain.com zone:

mx.exdomain.com.     A ip.ad.re.ss


in the imdomain.com. zone:

mx.imdomain.com.     A ip.ad.re.ss


But in hosts file, the same thing:

ip.ad.re.ss  mx.exdomain.com
ip.ad.re.ss  mx.imdomain.com

The hosts above asssumes Imail will find the above mx hostnames in DNS, 
then resolve them to A records in hosts file.

If you don't put MX records in DNS, Imail will try to send to the A record 
for @recipient.domain, so you would need to add A records to hosts file:

ip.ad.re.ss  exdomain.com
ip.ad.re.ss  imdomain.com

where all the above IP addresses are the IPs of the Imail and Exchange boxes.

Len


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