Suresh Ramasubramanian proclaimed on mutt-users that:
>On 01/07/00 08:48 -0400, Russell Hoover typed:
>>I've found out that my alternate ISP (Shore.Net, in Boston) is using a Mail
>>Transfer Agent called "Exim" -- <http://www.us.exim.org> I went to its
>>website, and, at least on a cursory look, couldn't find any mention of
>>Delivery Status Notification.
>Exim's an _excellent_ MTA :) However, I don't think it supports DSN (ref
>RFC 1894). So, turn it off when using mutt on your shore.net account.
I sure hate following up on my own post, but here's what the Exim FAQ says
about this ... slightly specious reasoning imho :)
> Q0517: When I activate "return receipt" for example in Netscape
> Mailbox sending options, then I get an error message from Exim...
> something like "not supported". Can I activate delivery confirmations?
> A0517: Exim does not support any kind of delivery notification.
> (A) You can configure it to recognize headers such as
> "Return-receipt-to:" if you wish.
> (B) Some people want MSN (message status notification). Such services
> are implemented in MUAs, and don't impact on the MTA at all.
> (C) I investigated the RFCs which describe the DSN (delivery status
> notification) system, and there is even a bit of code in there
> (excluded by #ifdef) for handling some of the data. However, I was
> unable to specify any sensible way of actually doing anything with the
> data. There were comments on the mailing list at the time; many
> people, including me, conclude that DSN is in practice unworkable. The
> killer problem is with forwarding and aliasing. Do you propagate the
> DSN data with the generated addresses? Do you send back a "reached end
> of the DSN world" or "expanded" message? Do you do this differently
> for different kinds of aliasing/forwarding? For a user who has a
> .forward file with a single address in, this might seem easy - just
> propagate the data. But what if there are several forwardings? If you
> propagate the DSN data, the sender may get back several DSN messages -
> and should the sender really know about the detail of the receiver's
> forwarding arrangements? There isn't really any way to distinguish
> between a .forward file that is forwarding and one that is a mini
> mailing list. And so on, and so on. There are so many questions that
> don't have obvious answers.
--
Suresh Ramasubramanian + [EMAIL PROTECTED]
Love at first sight is one of the greatest labor-saving devices the
world has ever seen.
