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 From:  Chris Buechler <cbuechler at gmail dot com>
 To:  Kelly Kur <kelly at cadcomputer dot ca>
 Cc:  m0n0wall at lists dot m0n0 dot ch
 Subject:  Re: [m0n0wall] DNS
 Date:  Fri, 1 Oct 2004 15:43:36 -0400
On Fri, 01 Oct 2004 13:33:45 -0600, Kelly Kur <kelly at cadcomputer dot ca> wrote:
> I am using an Monowall as my router behind that I have a exchange server
> called ie. Mydomain.com which I also registered. I also have a DNS server on
> this server. I am using DMZ (uses a private address for the server) port for
> this server I made the appropriate rules to foreword, port 25 (tcp)
> /53(udp)/443(tcp) to the dmz port. I have no problem sending email from the
> server and connecting to the server via HTTPS. 

What are the NS records for this "mydomain.com" pointing to?  Probably
your ISP's DNS, or maybe your domain registrar's DNS, in which case,
close that port 53 as it's unnecessary.

> For some odd reason I can't
> receive any email at all. I am not sure If I have to use a DNS foreword
> option in monowall for this purpose or not. Btw I am using  Win2k3 SBS, did
> I make a mistake configuring the DNS on the server or is the router blocking
> access to the DNS server?

I bet you're missing MX records, or they're wrong.