🚀 go-pugleaf

Jacqueline,

I wrote a FAQ on Exchange & Demon, which you can find on my homepage (in the
Other FAQs section), at:
  http://www.southdown.co.uk/users/jgrieve

However, that FAQ is written assuming the Exchange machine is dialling
Demon, and therefore it's the device that acquires your Demon IP address.
With a dial-on-demand router, this isn't the case; the router is the device
that acquires the IP address....

Therefore, the Demon machines will attempt to deliver your mail to the
router on port 25 and fail.  You need to configure the router to pass
incoming port 25 connections to the Exchange machine 'behind' it.  How to do
this will depend on the router.

Drop me some mail off-list and I'm sure we can work it out.

Regards,

Jon Grieve
(Ex-Demon customer)


(To reply, modify return address; change commas to dots)






<qeeeg@hotmail.com> wrote in message
news:tilpot0dl7pomfg1gujv0387se3dc51gl8@4ax.com...
Hi

I have a small 25 user MS Exchange 5.5 setup for internal users which is
working fine.  Our external mail is posted & collected using Mailgate at
the moment.  I would like to enable Exchange to take over from Mailgate
for our external e-mail.

We route to Demon through an ISDN router which is dial-on-demand.  We
use NAT from public to private.

I have enabled the Internet Mail Service & can telnet into port 25 of
the Exchange server.

Our DNS server is has all our internal names & ip addresses with
forwarding to Demon's DNS for external addresses.  The public DNS domain
name is <whatever>.com & our private DNS domain name is
core.<whatever>.com.

In the internal DNS zone I have added an A & MX record for
core.<whatever>.com.  Is this correct

Can anyone guide me further with some form of idiots guide to connecting
to Demon for delivery & collection of smtp mail.

--


Thanks in anticipation

Jacqueline