said it was not possible at the time was because for two
1) Our MTA at the time did not support OMDR or any similar features to achieve delivery of
mail using OMDR or other features to acheive the same means.
2) Later we developed our own Dynamic SMTP MTA which delivers mail to customer's
dynamically assigned IP address after verifying that we indeed have the correct customer
on the expected RAS port.
OMDR requires quite a bit of compliance from the customer point of view. Our own Dialup
SMTP solution required very little support from the customer's point of view other
than having an SMTP server listening on their dialup connection.
I'm thinking that this day in age with DDNS and broadband connections becoming far
more relevant that SMTP delivery to dynamic IP addresses is becoming less of an issue.
But then perhaps I'm mistaken.
Senior Systems Administrator
IS: Unix Systems
From: Steve Lang [mailto:email@example.com]
Sent: Wednesday, 19 April 2006 20:59
Subject: Re: [nznog] Port 25
Dare I suggest something worth talking about amongst the recent
Some time ago, I was asking about ISP's that provided ODMR
). Can't recall
where that thread went - someone from paradise saying something about
them not wanting to do it 'cause it would make them insecure or
something... Didn't make sense at the time.
In any case, this would appear to be to be a good solution.
The RFC has
been around for a long time (1999), and it appears that there may be
more than just a couple of clients/servers.
But, I still can't find anyone that supports it. Any clues who might?
Anyone from ISP land that want's to create an ODMR service?
Don't need a
static IP, should work with everyone etc. etc.
Just a quick email to the list to find out what
providers are doing regarding XTRA blocking port 25 when
does not provide internet connections, so many of
your customers are
using xtra as a service provider but not for other services wuch as
Many of my customers are XTRA customers, but are also vodafone etc
etc, so an external autheticated mail server is a huge
bonus for them.
Use secure port?
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